Excellent write-up.… Read more ». SOCOM vs. Standard M4 gov profile barrel. 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. There are a lot of stories out there, so let’s get to the source. In contrast, M16s and the earliest AR-15s feature a light barrel profile (the difference in weight between an M16A4 and an M4 is only 1 lb. Ther… For now, let’s go back to the beginning. Eventually, all modern enthusiasts ask why that happened. There’s also Rosco Manufacturing, but they pretty clearly mark their products. + Newsletter+ New Content Alerts+ Deals and Sales. Mission drives gear. AR-15 lore tells us that GIs were using their rifles as pry bars to open crates, and they were bending the barrels by the muzzle doing it. M16A4 has a 600 meter effective range. You won't be using a grenade launcher. Honestly looking for some opinions. This barrel diameter starts at .675″ by the chamber and then tapers down to .625″ under the handguard. Now it’s your turn. The XM177 “Commando” had a 10.5″ barrel … Faxon’s “Gunner” profile errs on the lightweight side at 1.37 lbs. Barrel profile for which the portion of the barrel in front of handguards is thickened to 0.715 inches; HBAR: A barrel that in some portion is thicker than government-profile, usually underneath the handguards; M4: Government barrel profile with small portion reduced to 0.575 inches to mount M203 grenade launcher Our 16” 5.56 barrel is the most accurate and longest lasting barrel attainable for your AR-15 build. A2 - generally a government profile, sometimes an HBAR. It's finished in black nitride for a long lasting, performance product. USSOCOM issued a Ground Precautionary Message in 1996, ACALA #97-03, demonstrating that most of the heat generated from firing occurs about 3″ to 4″ in front of the chamber. DDM4 V9 Specs. ar-15 5.56/.223 16" sabre defence mid-length government profile upper assembly includes all original sabre defence products. Yet, there are lots of AR-15 barrels that have profiles mimicking military configurations, such as the ubiquitous M4 profiles that have thinner diameters under the handguards and thicker in front of the gas block, along with a cutout to mount an M203 grenade launcher. An A2 barrel is very similar except it gets wider under the front sight and stays wider until the end and will only weight slightly more than an A1 barrel, this is called 'Government profile' An M4 will be very similar to an A2 except shorter, and has the same widening and under the FSB as the A2, but in between the front sight and the flashider it steps back down in profile then back up to accommodate a … Find your desired caliber and barrel finish to perfectly upgrade or repair you firearm. We Cold Hammer Forge our barrels, a process that sets us apart from other barrel manufacturers. besides the shorter length of the military M4 barrel, its realy the contour of the barrel that makes it an M4 barrel or a government profile barrel,so if it's got a colapsing stock,flat top, M4 hand gaurds,16" M4 profiled barrel it's as close as a real M4 as im gonna get :) May 12th, 2010, 01:24 PM. 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. Hi Clifford, it’s difficult to say who the manufacturer is. But those ounces are all on the front of the rifle, so it slows down the handling a bit in favor of stable marksmanship. M4 - stepped barrel, thin under the handguard. The last line of that quote highlights something interesting. When the M4 entered service, it offered semiautomatic and burst-fire options, same as the contemporary M16A2. I didn’t choose that profile, one way or the other-it was just part of a model that fit my budget. Today, we call this a “pencil” profile. M4: 16" Thin under the handguard, thicker in front of the sight, but has a groove cut there (to mount the front of the M203 grenade launcher on the military guns). The gas port on a genuine SOCOM barrel has a diameter of 0.062” and the barrel employs a carbine-length gas system. So what is an affiliate link? The original circa 1963 Colt SP-1/R6000, with its 20-inch barrel and 40-inch overall length, almost was instantly supplemented by the R6001 Carbine with a shorter 16-inch barrel. There was internal pressure to make the entire barrel thicker. The original intent was bridging the gap between the 20″ M16 series and the experimental XM177. The two ends of the barrel consist of: M4 feed ramps at one end. The Everyday Marksman is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon.com, audible.com, and any other website that may be affiliated with Amazon Service LLC Associates Program. Criterion makes their own Hybrid Profiles in both medium taper and light taper that meet a middle ground between the two. I often link to products and companies that I receive nothing from because I genuinely think it’s a good product. Check out my affiliate disclosure page, which has a bit more information. The Everyday Marksman is primarily funded by readers like you. All stripped barrels come equipped with an A4 Barrel Extension with extended M4 Feed Ramps for enhanced feeding reliability and a pre-installed locator pin. The two ends of the barrel consist of: M4 feed ramps at one end. Today, we discuss the difference in performance between 16" M4 / gov. Continuous taper designed for optimal weight, balance, and performance. That’s not to say it doesn’t have its benefits, though. The gauge wouldn’t pass through the bore, so the assumption was that the barrel was “bent.”, We (Marines) were replacing a lot of “bent” barrels that were determined to be “bent” because the Armorer’s Bore Drop Gauge would not freely pass through some barrels during Ordnance Inspections (LTI’s). I personally think the URG-I failed to address a big gripe with earlier M4s and that was weight. M4 Profile - A thin profile until you reach the gas port. TRYBE Defense has your back with an amazing lineup of AR15 barrels. Mahdollistaaksesi tietojesi käsittelyn Verizon Median ja kumppaneidemme toimesta, valitse 'Hyväksyn', tai valitse 'Hallitse asetuksia' saadaksesi lisätietoja ja hallinoidaksesi vaihtoehtojasi. Lightweight - thin the entire length. See the advantages of BCM Enhanced Profile Barrels. The Tactical Chest Rig: What You Need, and What You Don’t, Ilya Koshkin, The Dark Lord of Optics, Schools Me on Riflescopes, A Builder’s Guide to the M16A5 Concept Rifle, FFP vs SFP Optics: The Hype and the Truth, Thyrm Pyrovault Lighter Armor: Raw Truth Review, AR-15 Technical Details: How to Read the Spec Sheet. Honestly looking for some opinions. The government profile barrel is also … The government profile became the new standard, even though it wasn’t all that useful for its intended purpose. If I … The V9 Strength to Weight uses a government profile barrel, but extends 18 inches. On May 12, 2019 at 9:46 pm, MTHead said: Thanks Herschel, always wondered about those goofy looking things. Discussion in 'AR-15 Discussion' started by blakeforeal, Oct 7, 2014. This 10.5" barrel chambered in 9MM has a beautiful government profile and is milled from 4150 Chrome Moly Vanadium Steel. This keeps the sights more stable and reduces the “wobble zone” while aiming. The M4A1 dropped burst fire and restored a full-auto selection, like original M16s. The takeaway of this story is that just because the government does something, that doesn’t mean it’s the right answer for everyone. The M4 was adopted in 1994 after ten years of design and testing. Fantastic story! Unlike the 14.5-inch barrel of the true M4 Carbine, the LE6920 M4 carbine features a slightly longer, 16.1” chrome-lined barrel with a 1:7 rate of twist, which enables virtually unlimited selection of ammunition. Matt is the primary author and owner of The Everyday Marksman. Yahoo on nyt osa Verizon Mediaa. cut barrels and 16" HBAR (heavy barrel) barrels. Plus, the hybrid profile of this barrel is tapered under the handguard. Of course, no full auto, and … Colt has been the most visible producer of ArmaLite AR-15 pattern weapons, and the military designations M16 & M4are heavily associated with the company. One of the greatest mysteries of the modern AR-15 is the so-called Government Profile Barrel. So they made only the front of the barrel thicker to increase strength. My CAR is stainless steel 416 and my M4 is CMMG 14.5" w/ Phantom 5C2 and chrome lined Gov't profile. This site uses Akismet to reduce spam. No one is mag dumping all of their mags on full auto in any scenario to warrant the thicker barrels.. Learn how your comment data is processed. Usually 20", some 16" Midlengths are made this way. The M4, which features a shorter barrel, collapsible stock, and other modifications, has become standard equipment for close-quarters combat throughout the US Military. Given the choice, I’d rather the standard lightweight profile become the most popular again. 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. AR-15 .223 Wylde Lightweight Barrel. After that, the barrel gets heavier and thicker. The M16 was designed in 1956 and replaced the M14 as the U.S. military's standard service rifle in 1969. forces in the Korean War. 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. Marine Lt. Col Dave Lutz was the program manager for the M16A2 project from 1980 to 1983. You can find that by clicking on this link. Me ja kumppanimme säilytämme ja/tai käytämme tietoja laitteeltasi evästeiden ja vastaavien tekniikoiden avulla henkilökohtaisten mainosten ja sisällön näyttämiseen, mainosten ja sisällön mittaamiseen, yleisön näkemyksiin ja tuotekehitykseen. There are times where I link to specific products or companies that I recommend. The emergence of the Russian AK-47 forced a redesign of the M14 to increase firepower and dependability, resulting in the adoption of the M16 during the Vietnam War. The M4 barrel is lightweight under the handguards, until just before the gas port. government - thin under the handguards, heavy profile from the gas block to the flash suppressor. Ballistic Advantage AR-15 16" M4 5.56 1:7 Barrel Carbine-Length 4150 This item is currently on order MSRP: $160.00 . 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. Thank you for coming by The Everyday Marksman. These barrels are made to the highest of Colt standards in craftsmanship and reliability. The weight savings to go from the gov’t to a pencil isn’t huge, so don’t think you need to rush out and replace it any time soon. Plus, the hybrid profile of this barrel is tapered under the handguard. Government profile barrels taper down to a lightweight profile just before the gas block. 5in M4 Profile Upper Receiver/Barrel Assembly $ 520. 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