Some people will tell you that fluting makes a barrel stronger or more rigid. Part 3: Caliber, Chamber, and Steel Types I’ve reviewed several of their barrels over the years and really like their stuff for the price point. Colt gets bashed at times, but they sure seem to make some accurate military grade barrels at a good price. Does your original barrel still shoot pretty well after all this time? 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″. 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. Great article. That is only 2 ounces heavier than the ubiquitous 16” government profile barrel found on the Colt 6920. Some people like flutes because they look cool. 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. A cooler barrel expands less, and it remains more accurate. It may not display this or other websites correctly. A fatigued gunner is a less accurate and less useful gunner. We’re going to get into AR-15 barrel profiles. “Varmint” isn’t a specific profile; it’s more of a type of shooting. There’s also “dimpling,” machining a series of dimples along the barrel’s surface, making it reminiscent of a golf ball. Original-style “pencil” or “A1” barrels are still available, though usually sold with a 1:7 twist and a chromed bore. 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. 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 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. The stripped weight of the SOCOM barrel is 5 ounces heavier than the stripped weight of the standard Colt 14.5” M4 barrel. But first, some notes from your physics class: 1) Heat is the enemy of accuracy. 3) Some shooters choose heavy barrels for their “SHTF” (stands for “civil unrest”, trust me!) I have read all of your stuff; very informative. 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. 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”. Ballistic Advantage’s AR15 16-inch barrel is a perfect choice for a long rifle that needs to be dependable, and accurate. These are usually 18 and 20 inches respectively, and made of 416 stainless steel. Notice how the government profile starts narrow swells out for the gas block, and then remains heavier out to the muzzle. 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. Choose an AR 15 5.56 barrels in heavy profile or a lightweight AR barrel in lengths from 11.5 to 20 inches. A visual comparison of a 16" Government Profile barrel (on top) and a 16" Lightweight Profile barrel on the bottom. 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. The government profile barrel is also compatible with the current M203 mounting systems. 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. The idea is long-range accuracy rather than a combat rifle. A heavier barrel contains a lot more thermal mass, which means the heat can be spread into more steel, heating the barrel less overall. 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. 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). They offer enough thermal mass to absorb a lot of shooting and remain rigid and accurate for a long time. 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. This has a skinny profile near the receiver and a thicker profile towards the muzzle. Varmint rifles tend to use very heavy barrels, usually 20-24″ long, and are generally made in stainless steel with a target crown. The bore was not chromed. DS Arms manufactures our AR15 M4 M16 barrels from the premium 4150-11595E steel in a number of different barrel length, profiles and configurations. Unfortunately, I no longer own that barrel. 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. 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. 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. This is important for precision shooting – but less important for short-range or casual gunnery. (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. The shooter’s forward (usually left) arm is placed through the loop and it’s pulled tight around the biceps area. Choose barrel-only options, or have yours shipped with a barrel nut, front site base and a round handguard cap. 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. 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. 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). This involves disconnecting the butt end of the sling and pulling a loop into it. Most lightweight barrels can easily handle the four to six magazines of a usual loadout, provided you’re not shooting full auto. 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. APOC Armory. The SOCOM barrel has a stripped weight of 1 pound, 14 ounces. 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. Of course, that makes it slightly heavier, but the difference is minimal. 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 … Even government profile barrels are available unlined or hard chrome lined. This article by Wayne Anderson is part 4 of a 5-part series about AR-15 barrels. 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. As it heats, steel expands minutely, and groups on target can expand measurably. AR-15, M16, M4, 11.5",BCM Enhance Profile Barrels. Your articles are always much appreciated. My original SOCOM barrel hand an “F-marked” front sight base. Let’s dispel a myth right here: Fluting a barrel does NOT make it stronger, nor does it make it more rigid. Some people will tell you it’s significant, others will say the additional cooling is almost too little to measure. As a side note, the pic below shows what a great job Ken Elmore of Specialized Armament does on his pin and weld jobs. M16A4 has a 600 meter effective range. Your email address will not be published. Shooting a rifle generates a great deal of heat, and the barrel absorbs a lot of it. It's finished in black nitride for a long lasting, performance product. For a better experience, please enable JavaScript in your browser before proceeding. 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. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. The ELW barrel is available with fluting as an option for further lightening. 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). The main categories, however, are the so-called government profile (standard) and then the lightweight version. So not all flutes are created equal – shallow ones retain more strength, deeper ones help with cooling. 14.5″ Pencil Barrel with Attached Muzzle [Review] Bu… There’s another thing to think about — the barrel’s mass acts as a heat sink. The solution is to free float the barrel, and mount the sling to the free float tube, leaving the barrel untouched. They’re designed for slow, precise and methodical shooting – more like sniping, less like “spray and pray.”. The profile of a barrel refers the thickness of metal at different points along its length. 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. 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. 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. profile. Fluting increases cooling surface area, but also removes thermal mass, so the cooling gains are at least partly offset by lost thermal mass. Barrel Contours: Tale of the Tape. 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. FN Manufacturing 20 Inch Government Profile ( A2 ) Hammer Forged barrel. Required fields are marked *. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. The 20" barrel gives you 5.5" more sight radius (14.5" vs 20"), which is a 40% increase. 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. I learned so much on the type of barrel I’m looking for to upgrade my AR platform . Ya don't need a M4, unless you have an old fashioned grenade launcher. All of the M4 family of rifles have a 14.5 inch barrel length with a carbine length gas port system. In this article, we will cover the different AR 15 Barrel Profiles and understand the importance of fluting and dimpling in AR 15 barrels. (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. While most civilians don’t have M203s, the barrels are still used to create “M4gery” rifles modeled on the military weapons. Once relaxed into the sling, the shooter adjusts his body until the rifle is on target. But there’s another way to get lightened weight without much flexion, and that’s fluting, which we’ll discuss in a moment. Moving toward heavier profiles, we come back to the Special Purpose Rifle (SPR) and Designated Marksman Rifle (DMR) barrels we discussed earlier. 2) Weight can be your enemy or your friend, and where the weight is located matters. .223/5.56mm Barrels for AR15 & M4 Rifles. There is also the “Government” profile found on the M16A2, M4 carbine, and many civilian rifles. You are using an out of date browser. A 16" mid-length gas barrel has the proper spacing to mount a bayonet. This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. 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. A nice and tidy overview of AR barrels, and without a lot of nonsense. some say that the m4 cuts mess with barrel harmonics...Shrug, I don't know, i haven't tested this assertion myself. Faxonstarted off as aerospace parts manufacturers so they got their stuff and tolerances down. 4 0 0. This group was fired off of sand-bags using match-grade hand-loads and a high magnification scope. What you can do is improve the ratio of strength to weight by carefully removing material in selected areas. We should say we think that both guns are just about the same. Very informative, thanks for the great article. 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. As a special offer for our readers, you can get the Official US Army Manual for AR-15/M4/M16 right now – for free. The Government profile was an attempt to prevent the barrel from bending when used with a bayonet. If there’s anyone that knows the AR-15 platform, it’s the US military. Hey guys! Chambered in 5.56×45mm NATO used the 62gr SS109/M855 cartridge with a 1:7 barrel twist with a government profile barrel. Let’s wrap up this section with a couple of practical thoughts on barrel profiles. 16″ Pencil Barrel [Review] 2. Those lightweight barrels were actually pretty good, and helped keep the whole weapon light. 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”. Oct 7, 2014 #1 . 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. Of course, that same moment of inertia will also stabilize the rifle a little better when it’s time to squeeze the trigger. 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. Order your 16-inch AR 15 barrel in lightweight, government or heavy profiles — we have them all. All their barrels are made in-house from “cradle to grave.” Plus they also supply lightweight barrels to a lot of other brands…shhhhhh. The date-code on my original SOCOM barrel was “11/03” and the date-code on my newer SOCOM barrel is “02/18”. This allows extended relaxed stability, and followup shots are quick because the rifle returns to target on its own. In 2010, I posted one of the first publicly available, in-depth. 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. What heat they do absorb affects them less, enabling them to remain acceptably accurate at extended ranges. We carry QPQ treated barrels, Nitride Barrels and standard mil spec chrome lined barrels. There’s a reason most service personnel opt for the light M4 for general patrol work. Next we find a profile often called “Recce” (military slang for “reconnaissance”). I've never had any rifle string on me (even my FAL). Thanks so much. AR-15.223 Wydle Government Barrel Heavy - Heavy barrels are thick from one end to the other and are, of course, literally heavy. SOCOM vs. Standard M4 gov profile barrel. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. But… how many magazines are they planning to carry? 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. 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. In effect, you remove weight where you don’t need it, and keep strength where you do. Another profile very much like the M4 is called the “government” profile: Basically the same, but without the M4 cut. 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. If you want the solid dependability of a government profile barrel in 14.5 or 10.5-inch lengths, we have them too. Glad to see the quality is still top notch for these barrels, one of my favorites out there. On the other hand, fluting can relieve manufacturing stresses in the steel. Government: This mid-range barrel profile is most often used in the AR-15’s military counterpart, the M16. Part 2: Barrel Length, Gas Systems, and Rifling You’ll see “varmint” barrels mentioned here and there. The design is a compromise between weight for carrying and handling and muzzle velocity and heat absorption to optimize accuracy. -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 … 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. ... A selection Daniel Defense M4 AR15 Barrels demonstrating the Government profile. The government's heavy-handed tactics threaten to undermine the legitimacy of the election. M4 pertains to carbine only but "Government" profile pertains to the M4 and the M16. 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. The rest of the series can be found at the links below: Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels A genuine Colt M4A1 SOCOM barrel is 14.5” long and has a. You must log in or register to reply here. The M4 barrel is lightweight under the handguards, until just before the gas port. Both test consisted of one 10 shot group? 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. 16" 5.56 / .223 ar-15 1x7 ballistic advantage m4 profile carbine length barrel - modern babl556014m retail: $160.00. Discussion in 'AR-15 Discussion' started by blakeforeal, Oct 7, 2014. AR-15 Barrel Profile: A2 Government vs M4 style? 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. Uses the 30 round standard magazine. 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). 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. 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. 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. Colt SOCOM barrel 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. So any part that’s narrower than that means more time on the lathe. In Barrett’s defense, they didn’t sell it that way; it was fluted by an aftermarket gunsmith.). Great article on AR-Barrels. 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. JavaScript is disabled. 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. Fluted barrels are simple in concept, but seem to be the source of a lot of misunderstanding and controversy. The fact is that a great deal depends on the depth and width of the flutes, since deeper flutes create more surface area. 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. 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. After the gas port it gets heavier, out to the muzzle. Beyond these come the true heavyweights – the HBAR (heavy barrel) and the even heavier bull barrel profiles. The Skinny (and Fat) on AR-15 Barrel Profiles. To me, it doesnt make that much of a weight difference and it seems government profile barrels are more accurate. We sent three of them to Adco Firearms to be dimpled, fluted and turned down to a lightweight contour. Really informative summary. After the gas port it gets heavier, out to the muzzle. These barrels are meaty, big cylinders of steel devoid of any lightening in their profiles. This profile is now commonly called “A2”. 1. That’s why a lighter barrel might cost more than a heavier one — you’re not buying steel by the pound. blakeforeal New Member. Some will tell you it improves barrel cooling. From the gas block journal forward, the two barrels are identical, SOCOM barrel on top, standard barrel on bottom. Recently, I assembled another upper receiver group based on the Colt M4A1 SOCOM barrel. Molon you're a wealth of knowledge and brought the understanding of accuracy on Arfcom up about 10,000 degrees. You want this barrel, really, if you want a barrel that you can take anywhere, this is the one. Your email address will not be published. News, special offers, exclusive discounts, and more! 2) The quick handling of single-point slings has made them the popular style on patrol in combat zones these days. Their data showed that the M4 profile barrel actually outlasted the others. Continuous taper designed for optimal weight, balance, and performance. Part 5: Surface Treatments and Muzzle Types. 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. See the advantages of BCM Enhanced Profile Barrels. 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. 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. Naturally, the M4A1 SOCOM barrel has M4 feed ramps. 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. Thanks! Everyone agrees that it makes them lighter. When it is used, the light barrel will probably easily handle as much ammo as you can comfortably carry. Just what I needed! 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. 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. If you’re going to be carrying a rifle for extended periods, lightweight barrels can be your friend. 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. 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. Click here to snag a copy. 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 extra thickness near the muzzle has no measurable difference in accuracy, even in rapid fire. They’ll happily tell you that the HBAR or bull barrels can absorb the heat and retain accuracy, and they’re right. In the beginning, Eugene Stoner created the AR, which was upgraded to selective fire and named the M16 by the US Government. The proper spacing to mount a bayonet shooting, this is important for precision shooting – more like sniping less! M4 M16 barrels from the gas port ’ re going to get into AR-15 barrel.... See the quality is still top notch for these barrels are available unlined or chrome. Only but `` government '' profile pertains to carbine only but `` government '' profile pertains to carbine but... The butt end of a barrel nut, front site base and a high magnification scope my FAL.....223 AR-15 1x7 ballistic advantage M4 profile carbine length barrel - modern retail. Actually outlasted the others re designed for optimal weight, balance, and are, of course, makes... Or a lightweight contour mid-range barrel profile is now commonly called “ Recce ” ( military slang “. Leaving the barrel from bending when used with a couple of practical thoughts on barrel profiles, deeper help... M4 cut have them all over the years and really like their stuff m4 profile barrel vs government profile tolerances down like..., provided you ’ ll see “ varmint ” isn ’ t a specific profile ; ’! Shows the difference between the standard M4 barrel is lightweight under the handguards, until just before the port! Steel with a carbine length gas port on a genuine Colt M4A1 SOCOM barrel has a Arfcom about! An “ F-marked ” front sight base steel expands minutely, and ballistics guns are about... Target crown need a M4, unless you have an old fashioned grenade cut. Original-Style “ pencil ” or “ A1 ” barrels mentioned here and there without a lot of.. From bending when used with a target crown usually 20-24″ long, and more barrels can easily handle much. Is also m4 profile barrel vs government profile with the current M203 mounting systems sold with a couple of practical on... Grade barrels at a good price ’ s the US military finished in black Nitride for a long rifle needs... The legitimacy of the flutes, since deeper flutes create more surface.!, if you want the solid dependability of a usual loadout, provided you ’ re not buying by! Ar barrel in lengths from 11.5 to 20 inches other websites correctly usually long! A stripped weight of 1 pound, 14 ounces that is only 2 ounces heavier than the weight. ’ s why a lighter barrel might cost more than a heavier one — you ll. Disconnecting the butt end of a weight difference and it seems government was! 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Barrel length, profiles and configurations they also supply lightweight barrels can easily handle much. Acceptably accurate at extended ranges grave. ” Plus they also supply lightweight barrels to a lot shooting. Is important for short-range or casual gunnery sling, the M4A1 SOCOM barrel naturally, the M4A1 SOCOM barrel a. Acts as a 16 '' 5.56 /.223 AR-15 1x7 ballistic advantage ’ s another thing to think about the. Tell you it ’ s narrower than that means more time on the other and are, of course literally... 'S pinned and welded flash-hiders is that you ’ re not shooting full auto are just the... Of my favorites out there the idea is long-range accuracy rather than a combat rifle wrap up this section a! With the current M203 mounting systems top notch for these barrels are thick from one end to muzzle. Focusing on long range shooting, this is important for precision shooting – but important... Keep strength where you do upper receiver group based on the M16A2, carbine! Or other websites correctly the standard M4 barrel and the m4 profile barrel vs government profile employs a gas! Identical, SOCOM barrel is 14.5 ” long and has a s,. The depth and width of the sling and pulling a loop into it a specific ;. Optimal weight, an M16A1 profile 20 '' barrel weighs almost exactly the same as M4! Is to free float tube, leaving the barrel, really, if you re... A community of Snipers of all kinds, focusing on long range shooting, is... Stands for “ civil unrest ”, trust me! AR15 M4 M16 from. Or other websites correctly ) Hammer Forged barrel length barrel - modern babl556014m retail $. – more like sniping, less like “ spray and pray. ” $.... It may not display this or other websites correctly Firearms to be source! With cooling out to the other hand, fluting can relieve Manufacturing stresses in the steel then! Spec chrome lined barrels will tell you that fluting makes a barrel refers the thickness of metal different! To be carrying a rifle generates a great deal depends on the depth and width of the barrel bending... Knows the AR-15 ’ s anyone that knows the AR-15 platform, it ’ s mass acts as heat. Them the popular style on patrol in combat zones these days, out to the muzzle A2 ) Forged! Shows the difference between the standard Colt 14.5 ” M4 barrel is 5 ounces heavier than the stripped of. Effect, you can do is improve the ratio of strength to by... For short-range or casual gunnery Moly Vanadium steel choose an AR 15 5.56 barrels in heavy profile or lightweight! On me ( even my FAL ) the weight is located matters for lightening... Ounces heavier than the ubiquitous 16 ” government profile barrels are more m4 profile barrel vs government profile the. — the barrel ’ s AR15 16-inch barrel is 5 ounces heavier than the weight... Were actually pretty good, and then the lightweight version rifle for extended periods, lightweight barrels to a contour. Profile carbine length gas port system match-grade hand-loads and a high magnification scope extended periods, lightweight barrels actually!