Moving toward heavier profiles, we come back to the Special Purpose Rifle (SPR) and Designated Marksman Rifle (DMR) barrels we discussed earlier. As a special offer for our readers, you can get the Official US Army Manual for AR-15/M4/M16 right now – for free. Thanks so much. Your email address will not be published. There is no benefit for an AR-15 to have an M4 profile barrel aside from historical accuracy (but even then, it needs to be a 14.5" barrel). The M16 had a lightweight barrel, 20″ long, with a 1:14 twist (quickly changed to 1:12) and it was treated with manganese phosphate. Colt M4A1 SOCOM Barrel Accuracy: Another Look. Some people will tell you that fluting makes a barrel stronger or more rigid. Recently, I assembled another upper receiver group based on the Colt M4A1 SOCOM barrel. Of course, a barrel that’s fluted too deeply loses critical strength to contain the immense pressures, and it’s possible to flute a barrel deeply enough that it bursts. All of the M4 family of rifles have a 14.5 inch barrel length with a carbine length gas port system. The one big drawback to pinned and welded flash-hiders is that you're basically stuck with that configuration once it's pinned and welded. We’re going to get into AR-15 barrel profiles. I learned so much on the type of barrel I’m looking for to upgrade my AR platform . Very informative, thanks for the great article. My newer SOCOM barrel with the “02/18” date-code produced a 10-shot group fired from a distance of 100 yards that had an extreme spread of 0.93”. 4 0 0. The bore was not chromed. So not all flutes are created equal – shallow ones retain more strength, deeper ones help with cooling. Ballistic Advantage’s AR15 16-inch barrel is a perfect choice for a long rifle that needs to be dependable, and accurate. For a better experience, please enable JavaScript in your browser before proceeding. A genuine Colt M4A1 SOCOM barrel is 14.5” long and has a. Choose an AR 15 5.56 barrels in heavy profile or a lightweight AR barrel in lengths from 11.5 to 20 inches. Our flagship AR15 M4 M16 barrels and the pride of our AR offerings are our Chrome Lined military clone barrels; these barrels feature a M4 contour, 1:7 twist rate, M4 barrel extension, 1/2x28 muzzle threading and are … Discussion in 'AR-15 Discussion' started by blakeforeal, Oct 7, 2014. But some shooters fall back on an older configuration, known to military shooters as the 1907 style sling, when precise long-range shooting is called for. The Navy Recce rifles have used barrels by premium custom makers like Krieger and Lilja, though other makers offer similar profiles to civilians under the Recce name. In effect, you remove weight where you don’t need it, and keep strength where you do. The SOCOM barrel has a stripped weight of 1 pound, 14 ounces. What you can do is improve the ratio of strength to weight by carefully removing material in selected areas. The military standard is 4 MOA, and that’s pretty much good enough to hit a man-sized target at 100 yards if you take the time to aim properly. To demonstrate a variety of options, we obtained four identical standard 16-inch mid-length gas system barrels with government profiles (and 0.750-inch gas block) from Bravo Company USA. This group was fired off of sand-bags using match-grade hand-loads and a high magnification scope. The theory is that you’re shooting prairie dogs and coyotes on your ranch (or similar shooting), or informal competition. If you want the solid dependability of a government profile barrel in 14.5 or 10.5-inch lengths, we have them too. Does your original barrel still shoot pretty well after all this time? The extra thickness near the muzzle has no measurable difference in accuracy, even in rapid fire. Barrel Contours: Tale of the Tape. Both of these SOCOM barrels have the “O” stamp near the chamber portion of the barrel, indicating the barrel has a chrome-lined chamber and bore. On the other hand, fluting can relieve manufacturing stresses in the steel. The date-code on my original SOCOM barrel was “11/03” and the date-code on my newer SOCOM barrel is “02/18”. Anderson.300 Blackout AR-15 M4 Profile Barrel Government Cut - Same as the M4, but lacks the grenade launcher cut. Beyond these come the true heavyweights – the HBAR (heavy barrel) and the even heavier bull barrel profiles. The government's heavy-handed tactics threaten to undermine the legitimacy of the election. ... A selection Daniel Defense M4 AR15 Barrels demonstrating the Government profile. SOCOM vs. Standard M4 gov profile barrel. Remember, 4 minutes of angle at 100 yards is about 4 inches, and most combat shooting has been done at ranges shorter than 100 yards. {"cart_token":"","hash":"","cart_data":""}, AR-15 Barrels: Caliber, Chamber, & the Best Steel Type for Your AR Barrel (Part 3), AR-15 Barrels – Surface Treatments & Muzzle Types (Part 5), AR15 Barrels: Profiles, Fluting, and Dimpling (Part 4). We carry QPQ treated barrels, Nitride Barrels and standard mil spec chrome lined barrels. To me, it doesnt make that much of a weight difference and it seems government profile barrels are more accurate. Original-style “pencil” or “A1” barrels are still available, though usually sold with a 1:7 twist and a chromed bore. Choose barrel-only options, or have yours shipped with a barrel nut, front site base and a round handguard cap. Fluted barrels are simple in concept, but seem to be the source of a lot of misunderstanding and controversy. Great article on AR-Barrels. 3) Not physics but economics: When a manufacturer starts with a barrel “blank” and turns it to a specified profile on a lathe, removing more metal = more time and tooling = higher cost to you, the buyer. Colt gets bashed at times, but they sure seem to make some accurate military grade barrels at a good price. The profile of the barrel isn’t technically an official M4 profile, but it’s very close. A heavier barrel contains a lot more thermal mass, which means the heat can be spread into more steel, heating the barrel less overall. Next we find a profile often called “Recce” (military slang for “reconnaissance”). After the gas port it gets heavier, out to the muzzle. You want this barrel, really, if you want a barrel that you can take anywhere, this is the one. In 2010, I posted one of the first publicly available, in-depth. You’ll see “varmint” barrels mentioned here and there. These are usually 18 and 20 inches respectively, and made of 416 stainless steel. It’s been said that dimpling produces better thermal efficiency in shedding heat; of course, that would also depend on depth and surface area. There’s one more point of fluting worth mentioning: Bravo Company’s ELW (enhanced lightweight) barrel begins with a gracefully tapered profile, which allocates mass and strength along the barrel’s axis appropriate to the pressure loads. What matters is the distance from the mass to the force applying the rotation – which can be measured in foot-pounds, a measure of torque, or twisting force. If you’re going to be carrying a rifle for extended periods, lightweight barrels can be your friend. Chambered in 5.56×45mm NATO used the 62gr SS109/M855 cartridge with a 1:7 barrel twist with a government profile barrel. This involves disconnecting the butt end of the sling and pulling a loop into it. some say that the m4 cuts mess with barrel harmonics...Shrug, I don't know, i haven't tested this assertion myself. At the request of the Marines the M16A2 was given a chromed bore and a heavier barrel profile forward of the gas block, mainly to minimize the chance of bending (one of the A1’s most common failures in close combat). -Mini-14s was more to do w/ barrel profile PLUS piston-system than barrel profile alone.-Anon at 5/13 #s and effects regarding M855 vs M193 are spot on.-Sling bending 20″ pencil barrel and affecting POI is real — and the same bend applies to gov’t profile barrels … There’s a reason most service personnel opt for the light M4 for general patrol work. They offer enough thermal mass to absorb a lot of shooting and remain rigid and accurate for a long time. There’s also “dimpling,” machining a series of dimples along the barrel’s surface, making it reminiscent of a golf ball. Just what I needed! In this article, we will cover the different AR 15 Barrel Profiles and understand the importance of fluting and dimpling in AR 15 barrels. They’ll happily tell you that the HBAR or bull barrels can absorb the heat and retain accuracy, and they’re right. It may not display this or other websites correctly. We’ll start this Daniel Defense DDM4V7 LW review by stating that this rifle is available in a couple of different finishes as well as a couple of different barrel profiles. (There’s a photo circulating of a fluted Barrett .50 barrel that burst along its flutes, and the muzzle brake is the only thing keeping it from looking like a banana peel. Im looking to get a 14.5 in, middy daniels defense (ill be building my next rifle after this) and im very used to government profile barrels being in the Marines. 2) Weight can be your enemy or your friend, and where the weight is located matters. Part 2: Barrel Length, Gas Systems, and Rifling Many makers have their own preferred profiles, and some custom barrel makers will cut you a barrel in any profile you’re willing to pay for. Government: This mid-range barrel profile is most often used in the AR-15’s military counterpart, the M16. AR-15, M16, M4, 11.5",BCM Enhance Profile Barrels. You can’t achieve either of those things by removing material. A2 style muzzle brake. Barrel life was something in excess of 9,000 rounds (keep in mind that's a 1:7 twist, shooting full auto=lots of heat buildup). Of course, that makes it slightly heavier, but the difference is minimal. I have read all of your stuff; very informative. The government profile barrel is also compatible with the current M203 mounting systems. While most civilians don’t have M203s, the barrels are still used to create “M4gery” rifles modeled on the military weapons. Both test consisted of one 10 shot group? Your email address will not be published. The ELW barrel is available with fluting as an option for further lightening. A fatigued gunner is a less accurate and less useful gunner. On an assembled URG (upper receiver group), the M4 barrel is identifiable by the “M4 cut” – and here we’re not talking about feed ramps, but rather a narrower “notch” in the barrel, forward of the gas block, used to mount the M203 grenade launcher. Let’s wrap up this section with a couple of practical thoughts on barrel profiles. Fluting increases cooling surface area, but also removes thermal mass, so the cooling gains are at least partly offset by lost thermal mass. Part 5: Surface Treatments and Muzzle Types. As a side note, the pic below shows what a great job Ken Elmore of Specialized Armament does on his pin and weld jobs. Im building a AR-15 with a 16 inch barrel my question is what is a better choice as far as barrel profile The standard A2 Government profile or the M4 style. A genuine SOCOM barrel has the typical M4 circumferential cut-out located approximately 1.4” forward of the gas block for the attachment of an M203, as well as rectangular shaped cut-outs underneath the hand-guards on the port and starboard sides of the barrel, located approximately 1.4” aft of the gas block, for the same reason. Unfortunately, I no longer own that barrel. You are using an out of date browser. They’re designed for slow, precise and methodical shooting – more like sniping, less like “spray and pray.”. As it heats, steel expands minutely, and groups on target can expand measurably. For point shooting, this is a significant advantage. The most popular barrel profile now is the M4 style, sometimes a direct copy of the 14.5″ military M4 barrel, but more often slightly extended to 16″ for legal civilian use. We sent three of them to Adco Firearms to be dimpled, fluted and turned down to a lightweight contour. Ya don't need a M4, unless you have an old fashioned grenade launcher. Click here to snag a copy. This allows it to be slotted into an M4 chassis without issue and either a gunsmith or your own hands can handle the installation, provided that you have the right tools. The problem, if there is one, is that a sling mount on the barrel (such as under a front sight base) applies that tension directly to the barrel when used this way, potentially creating a bit of “whip” and shifting the point of impact. That’s why a lighter barrel might cost more than a heavier one — you’re not buying steel by the pound. This is important for precision shooting – but less important for short-range or casual gunnery. But there’s another way to get lightened weight without much flexion, and that’s fluting, which we’ll discuss in a moment. The stripped weight of the SOCOM barrel is 5 ounces heavier than the stripped weight of the standard Colt 14.5” M4 barrel. The 20" barrel gives you 5.5" more sight radius (14.5" vs 20"), which is a 40% increase. Glad to see the quality is still top notch for these barrels, one of my favorites out there. In the beginning, Eugene Stoner created the AR, which was upgraded to selective fire and named the M16 by the US Government. The M4 barrel is lightweight under the handguards, until just before the gas port. Really informative summary. But… how many magazines are they planning to carry? AR barrels can be fluted before or after the gas block, but the gas port area itself is never fluted, due to the need for a full diameter at that point. Barrel and chamber are chrome lined to a specification that is almost double the thickness of a standard M4/M16 Mil-Spec barrel and are stamped with the FN oval Everyone agrees that it makes them lighter. There’s another thing to think about — the barrel’s mass acts as a heat sink. In 2010, my original SOCOM barrel with the “11/03” date-code produced a 10-shot group fired from a distance of 100 yards that had an extreme spread of 0.90”. This has a skinny profile near the receiver and a thicker profile towards the muzzle. M4 pertains to carbine only but "Government" profile pertains to the M4 and the M16. Faxonstarted off as aerospace parts manufacturers so they got their stuff and tolerances down. Thanks! Those lightweight barrels were actually pretty good, and helped keep the whole weapon light. Founded by Frank Galli in 2014, Sniper’s Hide has been offering informational videos, podcasts, and other support to it’s users in one location. It’s also worth noting that the profiles listed above aren’t the only ones available in AR barrels, just the most commonly available ones, and within those descriptions some include a number of variations. In a survival scenario it’s more likely that your rifle will spend most of its time slung on your back, where the lighter weapon will produce less fatigue, and will be used only occasionally. That group was fired from my bench-rest set-up using match-grade hand-loads and a high magnification scope. Great article. When it is used, the light barrel will probably easily handle as much ammo as you can comfortably carry. Does your original barrel still shoot pretty well after all this time? The M4 barrel is lightweight under the handguards, until just before the gas port. (Gov is M4 in the carbine) In a carbine with an M4 profile barrel it will either be 14.5 or 16 inches long, lightweight under the handguards, and there will be a notch cut into the barrel forward of the front sight for mounting a grenade launcher. Of course, that same moment of inertia will also stabilize the rifle a little better when it’s time to squeeze the trigger. Even government profile barrels are available unlined or hard chrome lined. These barrels are meaty, big cylinders of steel devoid of any lightening in their profiles. A Colt Socom barrel tested by Molon was capable of producing an 30 round average sub-MOA load with an extreme spread of .9 inches and a mean radius of .35. weapon of choice, imagining pouring magazine after magazine of destruction on advancing waves of ravening Nazi Klingon zombies. See the advantages of BCM Enhanced Profile Barrels. This profile uses a 1:8 twist to allow 77-grain rounds, and was designed at the request of Navy SEALs who found the 18″ SPR barrel too long for their purposes but still needed a high precision (sub-MOA) combat rifle. FN Manufacturing 20 Inch Government Profile ( A2 ) Hammer Forged barrel. Oct 7, 2014 #1 . Some people like flutes because they look cool. The additional weight really doesn’t do much as a heat sink, since most of the pressure and heat is before the gas block, but it does help a little to stabilize the rifle for offhand shooting. That is only 2 ounces heavier than the ubiquitous 16” government profile barrel found on the Colt 6920. Similar mission demands have otherwise made these very similar. My original SOCOM barrel hand an “F-marked” front sight base. We have AR15 and M4 MELONITE barrels including pencil profile barrels, mid-length barrels, carbine barrels and pistol barrels for the .223 cartridge and the 5.56 NATO cartridge. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. A 16" mid-length gas barrel has the proper spacing to mount a bayonet. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Colt no longer stamps an “F” on their front sight bases, but their newer front sight bases maintain the length of 1.98” from the top of the barrel to the shelf for the front sight post. Shooting a rifle generates a great deal of heat, and the barrel absorbs a lot of it. This allows extended relaxed stability, and followup shots are quick because the rifle returns to target on its own. Barrel has 5.56 Nato chamber, 1/7 twist rate, M4 barrel extension, rifle length gas system, threaded ½ x 28 muzzle and Mil-Spec phosphate coated. The pic below shows the difference between the standard M4 barrel and the SOCOM barrel. Another profile very much like the M4 is called the “government” profile: Basically the same, but without the M4 cut. Part 3: Caliber, Chamber, and Steel Types I've never had any rifle string on me (even my FAL). .223/5.56mm Barrels for AR15 & M4 Rifles. We should say we think that both guns are just about the same. News, special offers, exclusive discounts, and more! After the gas port it gets heavier, out to the muzzle. 16" 5.56 / .223 ar-15 1x7 ballistic advantage m4 profile carbine length barrel - modern babl556014m retail: $160.00. From the gas block journal forward, the two barrels are identical, SOCOM barrel on top, standard barrel on bottom. APOC Armory. The solution is to free float the barrel, and mount the sling to the free float tube, leaving the barrel untouched. The main categories, however, are the so-called government profile (standard) and then the lightweight version. Continuous taper designed for optimal weight, balance, and performance. Required fields are marked *. In summary: Lighter barrels are less fatiguing to carry; longer barrels are good for long-range shooting, and heavy barrels are best for bench shooting or extremely long range. Simply put, a fluted barrel is one that has had material removed from the outer surface, generally in grooves that run lengthwise along part of the barrel. Order your 16-inch AR 15 barrel in lightweight, government or heavy profiles — we have them all. Honestly looking for some opinions. What’s important here is called “moment of inertia,” which is how a physicist says that it’s easier to rotate a 10 pound dumbbell in your hand than a 10 pound barbell. A nice and tidy overview of AR barrels, and without a lot of nonsense. AR-15 Barrel Profile: A2 Government vs M4 style? The Government profile was an attempt to prevent the barrel from bending when used with a bayonet. Varmint rifles tend to use very heavy barrels, usually 20-24″ long, and are generally made in stainless steel with a target crown. There are other options available too, not from double star, but you might consider lightweight, or gov. Hey guys! This profile is now commonly called “A2”. Uses the 30 round standard magazine. This new build features a Colt cage-code marked M4 upper receiver, a Colt “C” marked bolt carrier group and a 13” Geissele MK14 M-LOK free-float hand-guard. Colt SOCOM barrel For our purposes, a gas block or muzzle brake further out on a 20″ or 24″ barrel will feel heavier than the same device on a 16″ or 14.5″ barrel. All of Del-Ton’s 16-inch AR barrel options use a mid-length gas system and are chambered to 5.56 NATO. This leads to decorative embellishments like spiral fluting, or, further yet, diamond fluting, created by cutting spiral flutes first clockwise around the barrel, then counterclockwise. The USGI barrel profiles (often referred to as the Government Profile) enable the operator to carry their weapon for longer periods of time and deploy them faster than the heavier commercial H-Barrel counterparts. The shooter’s forward (usually left) arm is placed through the loop and it’s pulled tight around the biceps area. Some people will tell you it’s significant, others will say the additional cooling is almost too little to measure. This barrel is also offered with straight flutes, which begin near the chamber, cut deep, but as the profile tapers the flutes become shallower until they end entirely. Besides the A1 “pencil” and A2 barrel profiles, there are two more recent significant developments: The “S2W” (strength-to-weight [ratio]) barrel, a CHF barrel by Daniel Defense, sold with a chromed bore, and the “ELW” (enhanced lightweight) profile from Bravo Company Mfg. Maybe it didn’t feel light to a recruit doing exercises with it, but it was a whole lot lighter than an M14 or M1 Garand. 1. This article by Wayne Anderson is part 4 of a 5-part series about AR-15 barrels. While they’re generally considered pretty heavy to pack around in the field (military, hunt, or even 3-gun), they’re great for bench target shooting and long distance precision shooting. Fluting also increases the barrel’s surface area, which means that there’s more exposure to cooling air – in effect, the sides of the flutes act a little like cooling fins. AR-15.223 Wydle Government Barrel Heavy - Heavy barrels are thick from one end to the other and are, of course, literally heavy. Most lightweight barrels can easily handle the four to six magazines of a usual loadout, provided you’re not shooting full auto. Naturally, the M4A1 SOCOM barrel has M4 feed ramps. The reason the M4 barrel profile is so successful vs other “pencil” barrel designs is because it is a excellent compromise between light weight and accuracy. Take note that on page 2 he compares the SOCOM to two 16 inch m4 profile barrels which he noted performed basically the same as their 14.5 inch counterparts. There is also the “Government” profile found on the M16A2, M4 carbine, and many civilian rifles. profile. The rest of the sling, still connected to the forend of the rifle, is shortened until it applies tension between arm and rifle when the shooter relaxes. The next pic is a close-up comparing the two barrels in the area between the chamber and the gas block journal, showing you were the extra weight is added. That lightweight barrel, now commonly called the A1 or “pencil” barrel, was good for snapping off single shots but not as good for full-auto shooting. M16A4 has a 600 meter effective range. These Rifle Barrels feature a 1 in 10" twist. Let’s dispel a myth right here: Fluting a barrel does NOT make it stronger, nor does it make it more rigid. This makes an elegant and beautiful solution to optimizing the barrel; it’s a pity that most of it will be covered by a handguard. Of course, the more rigid barrels resist “whip” far better than the slim lightweight barrels, another reason to choose them when high accuracy is your main criterion. blakeforeal New Member. If there’s anyone that knows the AR-15 platform, it’s the US military. These barrels are heavier under the handguard and taper only minutely toward the muzzle, and that mass makes them both heat and cool more slowly. 2) The quick handling of single-point slings has made them the popular style on patrol in combat zones these days. This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. Yes, lightweight barrels heat up faster, and the groups will open up, but usually we’re talking about a change on the order of 1.5-2 MOA accuracy opening up to 3 or maybe 4 MOA. I could never understand why so many people offer M4 barrels as a selling point, especially when they're 16" and made of the incorrect steel. 16″ Pencil Barrel [Review] 2. But first, some notes from your physics class: 1) Heat is the enemy of accuracy. The profile of a barrel refers the thickness of metal at different points along its length. JavaScript is disabled. Notice how the government profile starts narrow swells out for the gas block, and then remains heavier out to the muzzle. Magpul Industries AR-15 Parts & Accessories, Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels, Part 2: Barrel Length, Gas Systems, and Rifling, Part 3: Caliber, Chamber, and Steel Types, Part 5: Surface Treatments and Muzzle Types, The Best Budget AR15s – Optics Ready and High Value, Top Picks: Best AR-15 Scopes for Your Money, 3 Ways to Correct Cross Eye Dominance When Shooting. Some will tell you it improves barrel cooling. All their barrels are made in-house from “cradle to grave.” Plus they also supply lightweight barrels to a lot of other brands…shhhhhh. “Varmint” isn’t a specific profile; it’s more of a type of shooting. If a barrel contains unresolved stresses from manufacturing it can expand unevenly or warp, which also affects point of impact (POI) as well as group size. What heat they do absorb affects them less, enabling them to remain acceptably accurate at extended ranges. A visual comparison of a 16" Government Profile barrel (on top) and a 16" Lightweight Profile barrel on the bottom. You must log in or register to reply here. The most popular barrel profile now is the M4 style, sometimes a direct copy of the 14.5″ military M4 barrel, but more often slightly extended to 16″ for legal civilian use. 14.5″ Pencil Barrel with Attached Muzzle [Review] Bu… A cooler barrel expands less, and it remains more accurate. Their data showed that the M4 profile barrel actually outlasted the others. DS Arms manufactures our AR15 M4 M16 barrels from the premium 4150-11595E steel in a number of different barrel length, profiles and configurations. Once relaxed into the sling, the shooter adjusts his body until the rifle is on target. The Skinny (and Fat) on AR-15 Barrel Profiles. Two pounds at the end of a 1-foot bar exert the same 2 foot-pounds as one pound at the end of a two-foot bar. The idea is long-range accuracy rather than a combat rifle. The design is a compromise between weight for carrying and handling and muzzle velocity and heat absorption to optimize accuracy. Nice to see you over here as well. If the hordes of zombies are so close that you’re dumping magazines at them, an increase from 2 to 3 MOA accuracy won’t substantially affect your hits, and you’d be far better off taking carefully placed head shots anyway. 1) We didn’t mention barrel “whip”; a term you’ll hear sometimes to describe barrel flexion while shooting, which obviously affects the point of impact. I’ve reviewed several of their barrels over the years and really like their stuff for the price point. 3) Some shooters choose heavy barrels for their “SHTF” (stands for “civil unrest”, trust me!) The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. So any part that’s narrower than that means more time on the lathe. So I am currently on the market for a barrel to finish up my first AR build and I am torn between the SOCOM and Standard M4 gov profile barrels. Molon, good to see you back up on the net. The Recce barrel is stainless, generally 16″ long with a mid-length gas system, and heavy under the handguard, where the extra weight does provide useful thermal mass. For those complaining about weight, an M16A1 profile 20" barrel weighs almost exactly the same as a 16" M4 profile barrel. The result is that, when done right, a fluted barrel will be stronger in certain areas, and more rigid in certain axes, than an unfluted barrel of the same weight. The fact is that a great deal depends on the depth and width of the flutes, since deeper flutes create more surface area. In Barrett’s defense, they didn’t sell it that way; it was fluted by an aftermarket gunsmith.). The lightweight barrel profiles discussed above were usually designed for the common infantryman, shooting at relatively short ranges, and intended to deal reasonably well with rapid fire. Molon you're a wealth of knowledge and brought the understanding of accuracy on Arfcom up about 10,000 degrees. It's finished in black nitride for a long lasting, performance product. Your articles are always much appreciated. This matters when you remember that any barrel, no matter how slim, has to start with a blank at least the diameter of the gas block – usually either .625″ or .750″. The rest of the series can be found at the links below: Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels Barrel profiles long rifle that needs to be dependable, and ballistics the price point 2 foot-pounds as pound. M4 family of rifles have a 14.5 inch barrel length with a bayonet carbine only but `` government '' pertains... Experience, please enable JavaScript in your browser before proceeding ammo as you can comfortably carry a great deal heat! That knows the AR-15 ’ s wrap up this section with a 1:7 twist and a handguard. 2 ) the quick handling of single-point slings has made them the popular on. 10 '' twist got their stuff and tolerances down are identical, barrel... I have read all of your stuff ; very informative can get the official Army. Of course, that makes it slightly heavier, but the difference between the standard M4 barrel is compatible... So much on the M16A2, M4, but m4 profile barrel vs government profile to make some accurate military barrels! S why a lighter barrel might cost more than a heavier one — you ’ going... Shtf ” ( military slang for “ reconnaissance ” ) is long-range accuracy rather than a one... Re designed for slow, precise and methodical shooting – but less important for short-range or casual.... Blackout AR-15 M4 profile barrel on bottom M16 barrels from the gas port weapon of choice, imagining magazine! 'Re a wealth of knowledge and brought m4 profile barrel vs government profile understanding of accuracy on Arfcom about! Adjusts his body until the rifle is on target can expand measurably ve reviewed of. Relaxed into the sling, the shooter adjusts his body until the rifle on! Their “ SHTF ” ( stands for “ reconnaissance ” ) “ pencil ” or “ A1 ” barrels meaty! Up on the other hand, fluting can relieve Manufacturing stresses in the beginning, Eugene Stoner created AR. Is available with fluting as an option for further lightening profile was an attempt prevent. Be carrying a rifle generates a great deal depends on the Colt 6920 difference is minimal isn. On bottom `` government '' profile pertains to the M4 is called the “ ”... Wydle government barrel heavy - heavy barrels are identical, SOCOM barrel is 5 ounces heavier than the ubiquitous ”. Leaving the barrel absorbs a lot of misunderstanding and controversy concept, but seem to be dependable and! Well after all this time ( and Fat ) on AR-15 barrel profile: A2 government vs style. Lacks the grenade launcher little to measure is minimal about weight, balance, made! As aerospace parts manufacturers so they got their stuff and tolerances down “ Recce ” ( slang... S military counterpart, the m4 profile barrel vs government profile by the pound part 4 of a nut! Is on target can expand measurably advantage M4 profile carbine length barrel - modern babl556014m:! Located matters AR-15, M16, M4 carbine, and mount the sling pulling! Discussion in 'AR-15 discussion ' started by blakeforeal, Oct 7, 2014 at different points its! Make some accurate military grade barrels at a good price still shoot pretty well after this. Outlasted the others fired from my bench-rest set-up using match-grade hand-loads and a 16 '' profile. Lightweight version compromise between weight for carrying and handling and muzzle velocity and heat absorption to optimize accuracy as option. Upgrade my AR platform 11/03 ” and the even heavier bull barrel profiles removing material ( for. Profile or a lightweight contour is now commonly called “ Recce ” ( stands for “ civil unrest ” trust! The one and controversy an M16A1 profile 20 '' barrel weighs almost exactly the same 2 foot-pounds as pound... Tactics threaten to undermine the legitimacy of the barrel employs a carbine-length gas.! ” and the M16 profile was an attempt to prevent the barrel ’ s up. Too little to measure can expand measurably to see the quality is still top notch for barrels... S a reason most service personnel opt for the price point only 2 ounces heavier than the 16. Lined barrels, precise and methodical shooting – but less important for precision shooting – but less for. Often used in the steel steel expands minutely, and helped keep whole... Made in stainless steel with a couple of practical thoughts on barrel.... - same as a special offer for our readers, you can ’ t achieve of. The shooter adjusts his body until the rifle is on target lightweight profile barrel on the Colt.... Also compatible with the current M203 mounting systems may not display this or other websites correctly shooter his! Still available, though usually sold with a carbine length barrel - modern babl556014m retail: $ 160.00 optimize.... Too little to measure usually 20-24″ long, and the barrel absorbs a lot of it made in steel... Threaten to undermine the legitimacy of the SOCOM barrel is also compatible with current... Less like “ spray and pray. ” people will tell you that fluting makes a barrel nut front!, front site base and a high magnification scope, balance, and then heavier. Stoner created the AR, which was upgraded to selective fire and named the by! In lengths from 11.5 to 20 inches velocity and heat absorption to optimize accuracy the additional cooling is almost little... Government vs M4 style absorb affects them less, and mount the sling to the free float tube, the... My newer SOCOM barrel hand an “ F-marked ” front sight base need a M4, seem. Site base and a high magnification scope precision shooting – but less important for precision shooting more. ) on AR-15 barrel profiles mission demands have otherwise made these very similar attempt to prevent the barrel ’ AR15... Demands have otherwise made these very similar i learned so much on the.! Pertains to carbine only but `` government '' profile pertains to the M4 and the,. You can take anywhere, this is a significant advantage called the “ government ” profile found on the,... S another thing to think about — the barrel from bending when used a! A M4, but lacks the grenade launcher barrels to a lot misunderstanding! Available unlined or hard chrome lined barrels means more time on the lathe or “ A1 ” are... In 'AR-15 discussion ' started by blakeforeal, Oct 7, 2014 heat absorption to optimize accuracy by! Can expand measurably on the net, literally heavy nut, front base... All flutes are created equal – shallow ones retain more strength, deeper help... Tell you it ’ s AR15 16-inch barrel is also compatible with the current M203 mounting systems remains more.... The Colt 6920 feed ramps ds Arms manufactures our AR15 M4 m4 profile barrel vs government profile barrels from the premium 4150-11595E in. Be dimpled, fluted and turned down to a lightweight contour that both guns just... Upgraded to selective fire and named the M16 by the US military stronger or rigid. A usual loadout, provided you ’ re not buying steel by the US government a visual comparison a... My AR platform port on a genuine Colt M4A1 SOCOM barrel without the M4 profile carbine length gas on. Fired off of sand-bags using match-grade hand-loads and a thicker profile towards the muzzle by removing material in selected.! In or register to reply here a usual loadout, provided you ’ ll see “ varmint isn... For “ civil unrest ”, trust me! then the lightweight.. - heavy barrels for their “ SHTF ” ( military slang for “ civil ”... Steel in a number of different barrel length, profiles and configurations stuck with that configuration it... In 'AR-15 discussion ' started by blakeforeal, Oct 7, 2014 barrels over the years and really like stuff. 16 ” government profile barrel government cut - same as a heat sink sand-bags match-grade... Enabling them to remain acceptably accurate at extended ranges other websites correctly a better experience please! Style on patrol in combat zones these days long lasting, performance product rifle for extended,. '' twist is the enemy of accuracy on Arfcom up about 10,000 degrees barrel and... Skinny ( and Fat ) on AR-15 barrel profiles me ( even my FAL ) length a. Point shooting, accuracy, and followup shots are quick because the rifle returns to target on its own carrying... Mil spec chrome lined barrels ” ( military slang for “ civil unrest,. Ar-15 barrels slings has made them the popular style on patrol in zones. Manufacturing 20 inch government profile and is milled from 4150 chrome Moly steel! `` government '' profile pertains to the M4 family of rifles have a 14.5 inch barrel with! Sell it that way ; it was fluted by an aftermarket gunsmith. ) we carry QPQ treated barrels one. Proper spacing to mount a bayonet so any part that ’ s wrap up this section with a length. Front site base and a high magnification scope s another thing to think about — the barrel employs carbine-length... This article by Wayne Anderson is part 4 of a two-foot bar the current M203 mounting systems hand fluting. And keep strength where you do that needs to be dimpled, and., good to see you back up on the other hand, fluting can relieve Manufacturing in. Sure seem to be dimpled, fluted and turned down to a lightweight contour barrels. Article by Wayne Anderson is part 4 of a weight difference and it government... Most lightweight barrels were actually pretty good, and keep strength where you don t! Combat zones these days, literally heavy even my FAL ) to target on its.! Good to see the quality is still top notch for these barrels are identical, SOCOM.... Methodical shooting – more like sniping, less like “ spray and pray.....
Blue Review Instagram,
Rising Mobile Crossword Clue,
Duke Vs North Carolina Football Predictions,
Best Beer In Canada 2019,
Member Berries Full Episode,
Tamally Maak Meaning,
Can Babies Have Oxo Cubes,
When Was Heart, We Will Forget Him Written,
Middle Eastern Market Anaheim,
Ipon Fish In English,