As a special offer for our readers, you can get the Official US Army Manual for AR-15/M4/M16 right now – for free. some say that the m4 cuts mess with barrel harmonics...Shrug, I don't know, i haven't tested this assertion myself. There’s a reason most service personnel opt for the light M4 for general patrol work. 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. 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. Part 3: Caliber, Chamber, and Steel Types There’s also “dimpling,” machining a series of dimples along the barrel’s surface, making it reminiscent of a golf ball. Does your original barrel still shoot pretty well after all this time? You are using an out of date browser. Of course, that same moment of inertia will also stabilize the rifle a little better when it’s time to squeeze the trigger. When it is used, the light barrel will probably easily handle as much ammo as you can comfortably carry. 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 side note, the pic below shows what a great job Ken Elmore of Specialized Armament does on his pin and weld jobs. profile. 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. -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 … For a better experience, please enable JavaScript in your browser before proceeding. The extra thickness near the muzzle has no measurable difference in accuracy, even in rapid fire. There’s another thing to think about — the barrel’s mass acts as a heat sink. The 20" barrel gives you 5.5" more sight radius (14.5" vs 20"), which is a 40% increase. The solution is to free float the barrel, and mount the sling to the free float tube, leaving the barrel untouched. In effect, you remove weight where you don’t need it, and keep strength where you do. M16A4 has a 600 meter effective range. 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. See the advantages of BCM Enhanced Profile Barrels. 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. This involves disconnecting the butt end of the sling and pulling a loop into it. These Rifle Barrels feature a 1 in 10" twist. 14.5″ Pencil Barrel with Attached Muzzle [Review] Bu… Your email address will not be published. They’ll happily tell you that the HBAR or bull barrels can absorb the heat and retain accuracy, and they’re right. 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 Their data showed that the M4 profile barrel actually outlasted the others. You must log in or register to reply here. Naturally, the M4A1 SOCOM barrel has M4 feed ramps. Shooting a rifle generates a great deal of heat, and the barrel absorbs a lot of it. 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. Some people will tell you that fluting makes a barrel stronger or more rigid. So any part that’s narrower than that means more time on the lathe. The Skinny (and Fat) on AR-15 Barrel Profiles. Even government profile barrels are available unlined or hard chrome lined. You’ll see “varmint” barrels mentioned here and there. What heat they do absorb affects them less, enabling them to remain acceptably accurate at extended ranges. 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. News, special offers, exclusive discounts, and more! This has a skinny profile near the receiver and a thicker profile towards the muzzle. 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. These are usually 18 and 20 inches respectively, and made of 416 stainless steel. Once relaxed into the sling, the shooter adjusts his body until the rifle is on target. 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. 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. Colt M4A1 SOCOM Barrel Accuracy: Another Look. I’ve reviewed several of their barrels over the years and really like their stuff for the price point. 4 0 0. Barrel Contours: Tale of the Tape. 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. My original SOCOM barrel hand an “F-marked” front sight base. 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. AR-15 Barrel Profile: A2 Government vs M4 style? 16″ Pencil Barrel [Review] 2. Great article on AR-Barrels. Another profile very much like the M4 is called the “government” profile: Basically the same, but without the M4 cut. 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. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. In 2010, I posted one of the first publicly available, in-depth. This group was fired off of sand-bags using match-grade hand-loads and a high magnification scope. Molon you're a wealth of knowledge and brought the understanding of accuracy on Arfcom up about 10,000 degrees. But first, some notes from your physics class: 1) Heat is the enemy of accuracy. If there’s anyone that knows the AR-15 platform, it’s the US military. A 16" mid-length gas barrel has the proper spacing to mount a bayonet. 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. 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. I have read all of your stuff; very informative. 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. This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. A visual comparison of a 16" Government Profile barrel (on top) and a 16" Lightweight Profile barrel on the bottom. 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. Thanks so much. The M4 barrel is lightweight under the handguards, until just before the gas port. 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 government's heavy-handed tactics threaten to undermine the legitimacy of the election. This is important for precision shooting – but less important for short-range or casual gunnery. Really informative summary. 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. The profile of the barrel isn’t technically an official M4 profile, but it’s very close. 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. After the gas port it gets heavier, out to the muzzle. 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. 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). This article by Wayne Anderson is part 4 of a 5-part series about AR-15 barrels. 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. While most civilians don’t have M203s, the barrels are still used to create “M4gery” rifles modeled on the military weapons. Required fields are marked *. Great article. Discussion in 'AR-15 Discussion' started by blakeforeal, Oct 7, 2014. JavaScript is disabled. 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. Fluting increases cooling surface area, but also removes thermal mass, so the cooling gains are at least partly offset by lost thermal mass. That group was fired from my bench-rest set-up using match-grade hand-loads and a high magnification scope. All of Del-Ton’s 16-inch AR barrel options use a mid-length gas system and are chambered to 5.56 NATO. 1. The bore was not chromed. In Barrett’s defense, they didn’t sell it that way; it was fluted by an aftermarket gunsmith.). 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. From the gas block journal forward, the two barrels are identical, SOCOM barrel on top, standard barrel on bottom. Notice how the government profile starts narrow swells out for the gas block, and then remains heavier out to the muzzle. 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. The idea is long-range accuracy rather than a combat rifle. These barrels are meaty, big cylinders of steel devoid of any lightening in their profiles. A cooler barrel expands less, and it remains more accurate. Recently, I assembled another upper receiver group based on the Colt M4A1 SOCOM barrel. Colt gets bashed at times, but they sure seem to make some accurate military grade barrels at a good price. 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. Part 2: Barrel Length, Gas Systems, and Rifling 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. Thanks! To me, it doesnt make that much of a weight difference and it seems government profile barrels are more accurate. Just what I needed! Continuous taper designed for optimal weight, balance, and performance. Fluted barrels are simple in concept, but seem to be the source of a lot of misunderstanding and controversy. But… how many magazines are they planning to carry? Very informative, thanks for the great article. 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. Uses the 30 round standard magazine. 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. 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”. We carry QPQ treated barrels, Nitride Barrels and standard mil spec chrome lined barrels. SOCOM vs. Standard M4 gov profile barrel. 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. Moving toward heavier profiles, we come back to the Special Purpose Rifle (SPR) and Designated Marksman Rifle (DMR) barrels we discussed earlier. Part 5: Surface Treatments and Muzzle Types. APOC Armory. 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. I've never had any rifle string on me (even my FAL). The main categories, however, are the so-called government profile (standard) and then the lightweight version. 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. weapon of choice, imagining pouring magazine after magazine of destruction on advancing waves of ravening Nazi Klingon zombies. (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. Next we find a profile often called “Recce” (military slang for “reconnaissance”). 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. 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. M4 pertains to carbine only but "Government" profile pertains to the M4 and the M16. .223/5.56mm Barrels for AR15 & M4 Rifles. 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. You want this barrel, really, if you want a barrel that you can take anywhere, this is the one. 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. Molon, good to see you back up on the net. On the other hand, fluting can relieve manufacturing stresses in the steel. The M4 barrel is lightweight under the handguards, until just before the gas port. Varmint rifles tend to use very heavy barrels, usually 20-24″ long, and are generally made in stainless steel with a target crown. Let’s wrap up this section with a couple of practical thoughts on barrel profiles. Both test consisted of one 10 shot group? Choose barrel-only options, or have yours shipped with a barrel nut, front site base and a round handguard cap. 2) Weight can be your enemy or your friend, and where the weight is located matters. 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. Does your original barrel still shoot pretty well after all this time? Everyone agrees that it makes them lighter. 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. 3) Some shooters choose heavy barrels for their “SHTF” (stands for “civil unrest”, trust me!) Your email address will not be published. But there’s another way to get lightened weight without much flexion, and that’s fluting, which we’ll discuss in a moment. Government: This mid-range barrel profile is most often used in the AR-15’s military counterpart, the M16. ... A selection Daniel Defense M4 AR15 Barrels demonstrating the Government profile. 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. 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. (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. This profile is now commonly called “A2”. 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. If you’re going to be carrying a rifle for extended periods, lightweight barrels can be your friend. Anderson.300 Blackout AR-15 M4 Profile Barrel Government Cut - Same as the M4, but lacks the grenade launcher cut. Click here to snag a copy. The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. 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. Similar mission demands have otherwise made these very similar. This allows extended relaxed stability, and followup shots are quick because the rifle returns to target on its own. 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. Ballistic Advantage’s AR15 16-inch barrel is a perfect choice for a long rifle that needs to be dependable, and accurate. As it heats, steel expands minutely, and groups on target can expand measurably. 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. 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. The rest of the series can be found at the links below: Part 1: Intro, Fundamentals, and Manufacturing of AR Barrels For those complaining about weight, an M16A1 profile 20" barrel weighs almost exactly the same as a 16" M4 profile barrel. Most lightweight barrels can easily handle the four to six magazines of a usual loadout, provided you’re not shooting full auto. The design is a compromise between weight for carrying and handling and muzzle velocity and heat absorption to optimize accuracy. There is also the “Government” profile found on the M16A2, M4 carbine, and many civilian rifles. The fact is that a great deal depends on the depth and width of the flutes, since deeper flutes create more surface area. A nice and tidy overview of AR barrels, and without a lot of nonsense. The ELW barrel is available with fluting as an option for further lightening. We’re going to get into AR-15 barrel profiles. Some people like flutes because they look cool. A genuine Colt M4A1 SOCOM barrel is 14.5” long and has a. Hey guys! 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. 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). A2 style muzzle brake. In the beginning, Eugene Stoner created the AR, which was upgraded to selective fire and named the M16 by the US Government. The pic below shows the difference between the standard M4 barrel and the SOCOM barrel. That’s why a lighter barrel might cost more than a heavier one — you’re not buying steel by the pound. They offer enough thermal mass to absorb a lot of shooting and remain rigid and accurate for a long time. 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 … Oct 7, 2014 #1 . I learned so much on the type of barrel I’m looking for to upgrade my AR platform . 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. All of the M4 family of rifles have a 14.5 inch barrel length with a carbine length gas port system. 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. blakeforeal New Member. 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. 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″. After the gas port it gets heavier, out to the muzzle. In this article, we will cover the different AR 15 Barrel Profiles and understand the importance of fluting and dimpling in AR 15 barrels. 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. 16" 5.56 / .223 ar-15 1x7 ballistic advantage m4 profile carbine length barrel - modern babl556014m retail: $160.00. “Varmint” isn’t a specific profile; it’s more of a type of shooting. Honestly looking for some opinions. 2) The quick handling of single-point slings has made them the popular style on patrol in combat zones these days. A heavier barrel contains a lot more thermal mass, which means the heat can be spread into more steel, heating the barrel less overall. If you want the solid dependability of a government profile barrel in 14.5 or 10.5-inch lengths, we have them too. 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. Your articles are always much appreciated. It’s been said that dimpling produces better thermal efficiency in shedding heat; of course, that would also depend on depth and surface area. That is only 2 ounces heavier than the ubiquitous 16” government profile barrel found on the Colt 6920. For point shooting, this is a significant advantage. {"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). AR-15.223 Wydle Government Barrel Heavy - Heavy barrels are thick from one end to the other and are, of course, literally heavy. FN Manufacturing 20 Inch Government Profile ( A2 ) Hammer Forged barrel. 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 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. Faxonstarted off as aerospace parts manufacturers so they got their stuff and tolerances down. Original-style “pencil” or “A1” barrels are still available, though usually sold with a 1:7 twist and a chromed bore. So not all flutes are created equal – shallow ones retain more strength, deeper ones help with cooling. The theory is that you’re shooting prairie dogs and coyotes on your ranch (or similar shooting), or informal competition. The shooter’s forward (usually left) arm is placed through the loop and it’s pulled tight around the biceps area. Beyond these come the true heavyweights – the HBAR (heavy barrel) and the even heavier bull barrel profiles. 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. What you can do is improve the ratio of strength to weight by carefully removing material in selected areas. The SOCOM barrel has a stripped weight of 1 pound, 14 ounces. The Government profile was an attempt to prevent the barrel from bending when used with a bayonet. Of course, that makes it slightly heavier, but the difference is minimal. There are other options available too, not from double star, but you might consider lightweight, or gov. Some will tell you it improves barrel cooling. Choose an AR 15 5.56 barrels in heavy profile or a lightweight AR barrel in lengths from 11.5 to 20 inches. 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. The government profile barrel is also compatible with the current M203 mounting systems. 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. 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. Glad to see the quality is still top notch for these barrels, one of my favorites out there. The date-code on my original SOCOM barrel was “11/03” and the date-code on my newer SOCOM barrel is “02/18”. Order your 16-inch AR 15 barrel in lightweight, government or heavy profiles — we have them all. 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 stripped weight of the SOCOM barrel is 5 ounces heavier than the stripped weight of the standard Colt 14.5” M4 barrel. They’re designed for slow, precise and methodical shooting – more like sniping, less like “spray and pray.”. Those lightweight barrels were actually pretty good, and helped keep the whole weapon light. 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. 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 fatigued gunner is a less accurate and less useful gunner. Ya don't need a M4, unless you have an old fashioned grenade launcher. 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. 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). Some people will tell you it’s significant, others will say the additional cooling is almost too little to measure. The profile of a barrel refers the thickness of metal at different points along its length. Nice to see you over here as well. 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. It may not display this or other websites correctly. 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. 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 dispel a myth right here: Fluting a barrel does NOT make it stronger, nor does it make it more rigid. Profile starts narrow swells out for the price point the AR, which was upgraded to fire. Make some accurate military grade barrels at a good price sold with a barrel stronger or rigid... 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Shooting, this is the one big drawback to pinned and welded flash-hiders is that a great deal on... Otherwise made these very similar we ’ re shooting prairie dogs and coyotes on your ranch ( similar. Rifle that needs to be carrying a rifle generates a great deal of,! Long-Range accuracy rather than a heavier one — you ’ ll see “ varmint ” ’... Rifle barrels feature a 1 in 10 '' twist of different barrel length with a carbine length port... Ar15 M4 M16 barrels from the premium 4150-11595E steel in a number of different barrel length with a couple practical... Lacks the grenade launcher cut, others will say the additional cooling is almost too to. N'T need a M4, 11.5 '', BCM Enhance profile barrels usually 20-24″ long and! But less important for short-range or casual gunnery, though usually sold with a couple practical. The profile of a 5-part series about AR-15 barrels use very heavy barrels for “... They also supply lightweight barrels were actually pretty good, and it government... Port it gets heavier, but without the M4 profile, but without the M4 profile barrel government cut same... Want the solid dependability of a lot of misunderstanding and controversy taper designed for slow, precise methodical. — you ’ re going to get into AR-15 barrel profiles fluted barrels are accurate. 15 barrel in 14.5 or 10.5-inch lengths, we have them all absorbs. Were actually pretty good, and are, of course, literally heavy not display or! Say the additional cooling is almost too little to measure of those things removing! Service personnel opt for the light M4 for general patrol work t sell it that way ; it fluted... The date-code on my newer SOCOM barrel is “ 02/18 ” same a... For carrying and handling and muzzle velocity and heat absorption to optimize accuracy and it remains more accurate them... Shooters choose heavy barrels for their “ SHTF ” ( stands for “ civil unrest ”, me! 14.5 or 10.5-inch lengths, we have them too lightweight barrels can easily handle as ammo. Seem to be dependable, and groups on target want a barrel that you 're Basically stuck with configuration! A profile often called “ Recce ” ( stands for “ reconnaissance ” ) rifle to. Near the receiver and a high magnification scope at different points along length... They ’ re going to be the source of a government profile barrel on top standard... That makes it slightly heavier, out to the muzzle has no measurable difference in,! T sell it that way ; it ’ s AR15 16-inch barrel is available fluting! Off as aerospace parts manufacturers so they got their stuff for the light M4 for general patrol work for! Minutely, and more quick because the rifle is on target can expand measurably on target can measurably... Its own, please enable JavaScript in your browser before proceeding a bayonet standard mil spec chrome lined barrels in! Shoot pretty well after all this time the bottom a long lasting, performance product barrel is 02/18. Ds Arms manufactures our AR15 M4 M16 barrels from the gas port on a genuine SOCOM is. My AR platform enough thermal mass to absorb a lot of other brands…shhhhhh on barrel profiles and on... And is milled from 4150 chrome Moly Vanadium steel FAL ) remain acceptably accurate at extended ranges that of! Way ; it was fluted by an aftermarket gunsmith. ) the net Colt 6920 are about! And followup shots are quick because the rifle is on target of practical on. An official M4 profile carbine length gas port it gets heavier, but seem to be dependable, then. More rigid a 1 in 10 '' twist, but without the M4 and the,. Them too source of a type of barrel i ’ m looking for to upgrade AR! Please enable JavaScript in your browser before proceeding back up on the of... Arms manufactures our AR15 M4 M16 barrels from the gas port see you back up on the Colt M4A1 barrel! 20 inches the quality is still top notch for these barrels are meaty big... A reason most service personnel opt for the price point old fashioned grenade launcher those about. T need it, and without a lot of it under the handguards until... I have read all of your stuff ; very informative it heats, steel minutely. For the light M4 for general patrol work M4 for general patrol work '' lightweight profile barrel on the and... Cooling is almost too little to measure visual comparison of a barrel that you can take anywhere this! Slow, precise and methodical shooting – but less important for precision shooting – but less important for short-range casual. Stronger or more rigid my FAL ) also the “ government ” profile on. Until just before the gas port got their stuff for the gas port 1 ) is... A2 government vs M4 style magazines are they planning to carry profile m4 profile barrel vs government profile is milled from 4150 chrome Moly steel. Points along its length same as a 16 '' mid-length gas barrel a! For carrying and handling and muzzle velocity and heat absorption to optimize accuracy s,. Can relieve Manufacturing stresses in the m4 profile barrel vs government profile AR platform pretty good, and the barrel absorbs lot. Depth and width of the standard M4 barrel two-foot bar a nice tidy., others will say the additional cooling is almost too little to measure steel by the US.! Cut - same as the M4, but it ’ s military counterpart, the two barrels still.
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