The rest of the time it was a long-range fight, always between 300 and 500 meters. The M4A1 was introduced in May 1991, and was in service in 1994. [29], In March 2015, the Army launched a market survey to see what the small-arms industry could offer to further enhance the M4A1 to an "M4A1+" standard. The Generation 2 Lancer Tactical entry level M4 Carbine has an outstanding list of features, taking their already impressive M4 Carbine 10 " KeyMod AEG Rifle to the next level, with YOU along with it! KelTec P50 Tactical Pistol: 50-Rounds of 5.7x28mm Firepower for Sporting, Hunting and Home Defense Applications! Shop Python. Civilian models are sometimes colloquially referred to as "M4gery" (/ɛmˈfɔːrdʒəri/ em-FOR-jər-ee, a portmanteau of "M4" and "forgery"). I originally received mine when the L5 AWM mag first came out, back in 2008ish. In 1982, Colt and the US Army start making a variant of the XM177E2 that fires 5.56mm NATO rounds called the XM4, and it was improve throughout the following years until 1991 when it became the M4. Later, the gun was updated with improved furniture, and a 1-7" barrel. Further information on M4 carbine variants: (Although many .22 caliber conversion kits are made for the AR-15, the rimfire versions are only cosmetic similar rifles.). If anything, these few examples of rifles being employed down range show that the current-issue SOPMOD Block II optics (specifically the 1×4 SU-230). The M4 is a shorter and lighter variant of the M16A2 rifle, with 80% parts commonality. Superior built quality and excellent performance make the JG M4 a all-round blaster and a go-to for the players that want something robust but responsive and field ready. Also, note dope cards for quick reference MIL range holds taped to stocks (buttstocks). [36], The modern Model 933 has a "flattop" receiver, with a removable carrying handle and a MIL-STD-1913 Picatinny rail, with semi-automatic and automatic fire. While the M4's maneuverability makes it a candidate for non-infantry troops (vehicle crews, clerks and staff officers), it also makes it ideal for close quarters battle (CQB). The XM177E2 was used in the military from 1967 until 1994, when it was replaced by the M4. Well, despite what many might think of “budget optics”, the bottom line is that if they work well and prove to be reliable, then why not. And, even though Vortex Razors have been purchased by a number of Special Operations units, they haven’t yet become a standard SOCOM-issued item. [31], The M4 and its variants fire 5.56×45mm NATO (and .223 Remington) ammunition, and are gas-operated, magazine-fed, selective fire firearms with either a multi-position telescoping stock or a fixed A2 or LE tactical stock.[32]. I myself, Lancer L5 Advanced Warfighter Magazines (5.56mm NATO). This has come at the cost of reliability and maintainability. All Rights Reserved, Tactical AR-15/M4/M4A1 Carbine Aftermarket Accessories for Military Combat Applications: The Competition-to-Combat Crossover Part, Part 4, CAA Gen-2 Micro Conversion Kit (MCK 2.0): Carbine Conversion Kit for for Glock Pistols Gets EIGHT Upgrades! In Afghanistan, the enemy typically fights from distance, even in the villages. We maintain our high standard of tolerances and attention to detail as the uppers we use for complete rifle builds. Other types of magazines with different capacities such as the 100 rounds Beta C-Mag is also available. It has a 14.5 in (370 mm) barrel and a telescoping stock . Troops did not report reliability problems with their rifles. Built upper receiver with 15″ m-lok handguard, 16″ M4 4150 chrome vanadium 1:8 twist barrel, carbine gas system, forward assist, dust cover and birdcage flash hider installed. Conversion of M4s to the M4A1 began in 2014, the start of all U.S. Army forces being equipped with the automatic variant. M4 feedramps are extended from the barrel extension into the upper receiver. On the latter claim, Colt could not recover monetary damages. Magpul Industries accessories are still very well represented by SOF members. This is known as carrier tilt. [41] Current contractors for the Mk 18 are Colt and Lewis Machine & Tool (LMT) NSN 1005-01-527-2288. © Copyright 2018 DefenseReview.com (DR) and Jeff Gurwitch. It’s also compatible with airsoft’s standard magazines, from 30 to 300 rounds. No private citizen can own an M4 in a select-fire or fully automatic configuration, as this model of fully automatic rifle was developed after the 1986 ban on fully automatic weapons available to be purchased by US citizens under the Firearms Owners' Protection Act of 1986. To improve reliability, Colt used an articulating link piston (ALP), which "reduces the inherent stress in the piston stroke by allowing for deflection and thermal expansion". Further, the trial M4s had burst-mode fire groups, which are more complicated and prone to failure than the fully automatic fire groups the other manufacturers presented for testing. Upgrades included a heavier barrel to better dissipate heat from sustained automatic firing, which also helps the rifles use the M855A1 EPR that has higher proof pressures and puts more strain on barrels. The M4A1 was the first M4 model with the removable carry handle. Intense firefights lasted hours with several magazines being expended. [43] The Individual Carbine competition was canceled before a winning weapon was chosen. Variants of the carbine built by different manufacturers are also in service with many other foreign special forces units, such as the Australian Special Air Service Regiment (SASR). ", "Syrian Kurds are now armed with sensitive US weaponry, and the Pentagon denies supplying it", U.S. Army Won't Field Rifle Deemed Superior to M4, United States Marine Corps Squad Advanced Marksman Rifle, United States Army Squad Designated Marksman Rifle, AC-130H/U/J/W Spectre/Spooky II/Ghostrider/Stinger II, MC-130E/H/J/P Combat Talon I/Combat Talon II/Commando II/Combat Shadow, RC-135S/U/V/W COBRA BALL/Combat Sent/Rivet Joint, AGM-84H/K Standoff Land Attack Missile - Expanded Response, AGM-86B/C/D Air-Launched Cruise Missile (ALCM), AGM-88A/B/C High-speed Anti-radiation Missile (HARM), AGM-114 Hellfire Air-to-Surface Missile (ASM), AGM-158 Joint Air-to-Surface Stand-off Missile (JASSM), https://en.wikipedia.org/w/index.php?title=M4_carbine&oldid=1005614836, Weapons and ammunition introduced in 1994, Articles with dead external links from October 2015, Articles with dead external links from February 2018, Articles with permanently dead external links, Articles with dead external links from June 2016, Short description is different from Wikidata, Articles with unsourced statements from June 2015, Articles with unsourced statements from June 2016, Articles with unsourced statements from December 2020, Articles with unsourced statements from January 2021, Articles with unsourced statements from October 2020, Articles with unsourced statements from May 2020, Articles with unsourced statements from October 2017, Articles lacking reliable references from November 2017, Articles needing additional references from October 2016, All articles needing additional references, Articles with unsourced statements from July 2012, Articles with unsourced statements from January 2020, Creative Commons Attribution-ShareAlike License. The full-auto trigger group has a more consistent trigger pull, whereas the burst group's pull varies on where the fire control group is set, resulting in more predictable and better accuracy on semi-automatic fire. As with all versions of the M16, the M4 accepts a blank-firing attachment (BFA) for training purposes. Civilian replicas of the M4 typically have 16 inch barrels (or standard 14.5-inch M4 barrels with permanently attached flash suppressors with a total length of 16 inches) and are semi-automatic-only to meet the legal definition of a rifle under the Gun Control Act. So, why were they chosen? It is claimed to have "markedly better" accuracy. The CNA conducted surveys on 2,608 troops returning from combat in Iraq and Afghanistan over the past 12 months. While true irons are hard to break and won’t run out of battery life, the fact is, the increased performance of a red dot trumps any of the perceived benefits of irons. The full-size M16 rifle had 61 stoppages during the same extreme dust test. [citation needed], In 2007, the United States Marine Corps ordered its officers (up to the rank of Lieutenant Colonel) and staff non-commissioned officers to carry the M4 carbine instead of the M9 handgun. The M4 is extensively used by the United States Armed Forces and is largely replacing the M16 rifle in United States Army and United States Marine Corps combat units as the primary infantry weapon[6][7] and service rifle. The weapon quickly became a favorite of the MACV-SOG. As with many carbines, the M4 is handy and more convenient to carry than a full-length rifle. The scopes were personally/individually purchased, and the Geissele mounts were a unit-purchased item. This product is a Durkin Tactical AR-15 Complete Side Charging Upper that features a 16″ M4 contour parkerized barrel that has a 1:8 twist rate and a carbine length gas system. This material may not be published, broadcast, rewritten or redistributed without receiving permission and providing proper credit and appropriate links. Colt had maintained that it retains sole rights to the M4 name and design. The U.S. Air Force, for example, has transitioned completely to the M4 for Security Forces squadrons, while other armed personnel retain the M16A2. Furthermore, a Marine Chief Warrant Officer reported that there were no issues with his battalion's 700 M4s and 350 M16s. Since I’ll most likely never go into harm’s way again, I at least wanted a setup I could take to the range and have some fun with. [47], In December 2006, the Center for Naval Analyses released a report on U.S. small arms in combat. AR-15. Standards are the Colt Model 920 (M4) and 921 (M4A1). 81 percent (743 troops) did not need their rifles repaired while in theater. The kit features an M4A1, a Rail Interface System (RIS) handguard developed by Knight's Armament Company, a shortened quick-detachable M203 grenade launcher and leaf sight, a KAC sound suppressor, a KAC back-up rear sight, an Insight Technologies AN/PEQ-2A visible laser/infrared designator, along with Trijicon's ACOG TA-01NSN model and Reflex sights, and a night vision sight. This item: Lancer Tactical LT-12B-G2 Gen 2 RIS M4 Carbine AEG Airsoft Rifle (Black) $153.00 Only 20 left in stock - order soon. Indeed, they are Vortex’s lower end offerings compared to their Razor line. After using these optics in matches and training, these guys obviously have confidence in them. Unlike my last tour, where almost every rifle had a SU-230 as the primary optic, all these carbines sport some sort of 1×6-power scope. The XM177E1 does have problems with weapon jamming, however it does have positive reviews, and some soldiers preferred the XM177 over the M16. While many machine guns can be legally owned with a proper tax stamp from the Bureau of Alcohol, Tobacco, Firearms and Explosives, an amendment to the Firearm Owners Protection Act of 1986 barred the transfer to private citizens of machine guns made or registered in the U.S. after May 19, 1986. While only 100 troops were asked, they fought at least a dozen intense engagements in Helmand Province, where the ground is covered in fine powdered sand (called "moon dust" by troops) that can stick to firearms. Now, three years later, these same men are truly seasoned and experienced warriors who all have at least two combat tours under their belt. M4 users had the highest levels of satisfaction with weapon performance, including 94 percent (862 troops) with accuracy, 92 percent (844 troops) with range, and 93 percent (853 troops) with rate of fire. This can also tilt the bolt during extraction, leading to increased bolt lug failures. Copyright © 2020 DefenseReview.com. The XM4 was also given the cartridge deflector, as well as other minor refinements. SF operator conducting training down range with dual-optic M4A1 Carbine. [11] While ordinary riflemen in the Marine Corps were armed with M16A4s, M4s were fielded by troops in positions where a full-length rifle would be too bulky, including vehicle operators, fireteam and squad leaders. Airsoft M4 Carbine Rifle by Lancer Tactical 10 Inch Keymod AEG Gun LT-19B-G2 Gen. 2 Carbine - Black. However, these rifles had design issues, as "the barrel length was halved" to 10 inches (25 cm), which "upset the ballistics", reducing its range and accuracy and leading "to considerable muzzle flash and blast, so that a large flash suppressor had to be fitted. [61] The Enhanced M4 uses an articulating link piston operating system. The reason for this is simple; all these optics were purchased by the team members. The COMRADE is designed and manufactured with the highest standards that are expected with any Tactical … Tactical AR-15/M4/M4A1 Carbine Aftermarket Accessories for Military Combat Applications: The Competition-to-Combat Crossover, Part 1 Vortex Optics Strike Eagle 1-8×24 Riflescope with AR-BDC2 Reticle (30mm Tube) for Very Fast Shooting up Close, and out to Distance! The barrel that comes in our WARFIGHTER SBR and Pistol models. Only 19 percent of M4 users (174 troops) reported a stoppage, and 82 percent of those that experienced a stoppage said it had little impact on their ability to clear the stoppage and re-engage their target. [26][27] The order is expected to be completed by 2018. I’ve never had a problem with them, and still trust them to this day. Are not as favored anymore compared to what’s being offered on the civilian market. I’ve also seen mid-ranged priced Primary Arms and Burris scopes in the field. It includes a 15 1/4″ MLOK rail, an M4 flat-top forged upper receiver with forwarding assist, a bolt carrier group (BCG), a flash hider, and a … Shield CQS (Close Quarter Sight) Mini Red Dot Reflex Sight Combat Optic: Jeff Gurwitch Runs it at the Range, and Gives us his Initial Impressions! [56], There were three extreme dust tests performed in 2007. M4 Magpul Series. Lancer Tactical G2 Airsoft LT-19B M4 Carbine 10" AEG Rifle - BLACK 4.4 out of 5 stars 168. Tactical AR-15/M4/M4A1 Carbine Aftermarket Accessories for Military Combat Applications: The Competition-to-Combat Crossover, Part 3, Tactical AR-15/M4/M4A1 Carbine/SBR Aftermarket Accessories for Military Combat Applications: The Competition-to-Combat Crossover, Part 2, Tactical AR-15/M4/M4A1 Carbine Aftermarket Accessories for Military Combat Applications: The Competition-to-Combat Crossover, Part 1, Vortex Optics Strike Eagle 1-8×24 Riflescope with AR-BDC2 Reticle (30mm Tube) for Very Fast Shooting up Close, and out to Distance! Several upgrade options include an extended forward rail that will allow for a free-floated barrel for improved accuracy with a low-profile gas block that would do away with the traditional triangular fixed front sight, removable front and rear flip-up back-up iron sights, a coyote tan or "neutral color" rail for reduced visual detection, a more effective flash suppressor/muzzle brake, an improved charging handle, and a new single-stage trigger module. This is because of the carbine's lighter weight, compact length, and ability to address modern combat situations that happen mostly within close quarters; if a squad needs to engage at longer ranges, the M27 IAR can be used as a designated marksman rifle. Colt Mfg CR6920 M4 Carbine 5.56/223 16.1" 30+1 4-Position Collapsible NEW (CR6920) (CR6920) This is a new Colt M4 Carbine AR-15 semi-automatic rifle chambered in 5.56/223 cal. Credit goes out to the Original creators of this model. (Range Video!). The weight of the cyclic components of the gun has been doubled (while retaining the weapon's weight at less than 8 pounds). It is a scaled-down version of the M16A2 assault rifle, with a shorter barrel and telescoping butt stock. Colt Model 925 carbines were tested and fitted with the Knight's Armament Corporation (KAC) M4 RAS under the designation M4E2, but this designation appears to have been scrapped in favor of mounting this system to existing carbines without changing the designation. (Video!).  Carbine Slings  With the ... We put our heads together, and after a short time, the Vickers Tactical Combat Applications Sling was the result. $329.00. Lancer Systems L5 Advanced Warfighter Magazine (Lancer L5 AWM) 30-Round 5.56mm NATO Translucent Polymer AR Mag (AR-15/M16 Rifle Magazine) to Debut at SHOT Show 2011, By David Crane david (at) defensereview (dot) com February 10, 2021 DefenseReview published a piece …. In January 1984, the US Army revised the QRP, and a month later, the Army formally approved the revised QRP. In January 2017, a USMC unit deployed with suppressors mounted to every infantry M4 service weapon. Toll Free: 800-426-0048 In late 2011, the Army bought 65,000 more conversion kits. The second is that gas piston alternatives use an off-axis operation of the piston that can introduce carrier tilt, whereby the bolt carrier fails to enter the buffer tube at a straight angle, resulting in part wearing. In the last few years, M4A1 carbines have been refitted or received straight from the factory with barrels with a thicker profile under the handguard. Heckler & Koch later settled out of court, changing one product's name from "HK M4" to "HK416". That’s not the case with a 45-degree offset red dot. As much as I’d like to take credit the for that–the men having learned this from me, that is–I think it’s due to the operators knowing the terrain and how the enemy fights. There’s a good chance many of these rifles are nearing excessive bore erosion from use, and will need new barrels soon. [19][20] According to a PDF detailing the M4 Carbine improvement plans released by PEO Soldier, the direct impingement system would be replaced only after reviews were done comparing the direct impingement system to commercial gas piston operating system to find out and use the best available operating system in the U.S. Army's improved M4A1. BDT/GD-OTS RM277-R (Rifle) and RM277-AR (Automatic Rifle) 6.8mm Next Generation Squad Weapon (NGSW) Systems with Delta P BREVIS II Suppressor and True Velocity Polymer-Cased Ammo for Future Infantry Warfare! The first 24,000 were to be made by Remington Arms Company. In 2013, the current M4A1 version can fire 1,691 mean rounds between stoppages using M855A1 ammunition. But for combat? Its versatile air system uses either a 12g CO2 cartridge in the 80 round magazine, or the built-in remote line. Looking at the pics, you won’t see any Vortex Razors or Trijicon 1x8s, even though both of those optics have been rumored to have been chosen by SOCOM. Complicating the Army search for higher reliability in the M4 is a number of observations of M4 gas piston alternatives that suffer unintended design problems. The VCOG, stock, grip, AFG, Arredondo extended mag well, extended bolt catch, sling, and offset mount are all personally owned by the author and were used down range. The court also ruled that "M4" was now a generic name, and that Colt's trademark should be revoked.[68]. Search: Colt Combat Elite. While there, they questioned around 100 infantrymen about the reliability of their M4 Carbines, as well as the M16 rifle. [21], In September 2010, the Army announced it would buy 12,000 M4A1s from Colt Firearms by the end of 2010, and would order 25,000 more M4A1s by early 2011. [28], The M4 product improvement program (PIP) is the effort by the U.S. Army to modernize its inventory of M4 service rifles. The Colt M4 carbine is a selective fire weapon chambered in 5.56 NATO. However, that wasn’t the sole reason for choosing them. Magazine Capacity: 300 Muzzle Velocity: 370-390 FPS Thread Direction: 14mm Negative Gearbox: Ver 2 Full Metal Fire Modes: Semi/Full-Auto, Safety Battery: 9.6v Small Brick Type NiMH / 7.4v Small Brick Type LiPo recommended Hopup: Yes, Adjustable The weapon was cleared and resumed firing with the next chambered round. M4 Carbine Series. Mainly because it was shorter, lighter, and easier to handle. As such, only the earliest Colt M4 prototypes built prior to 1986 would be legal to own by non-SOT civilians. "[8] In 1982, the US Government requested Colt to make a carbine version of the M16A2, at the time, the Colt M16A2 was the Colt 645, also known as the M16A1E1. [20][62], The M4 was developed and produced for the United States government by Colt Firearms, which had an exclusive contract to produce the M4 family of weapons through 2011. In my obviously biased opinion, it is the best adjustable two point design to date. Colt stopped working on improving the other Colt Carbines to do more work on the M4. The Army testing command stated that, if the number of stoppages caused by a broken part met some threshold, they would be eliminated from the final report pending redesign of the part. The switch was to begin in early 2016 and be completed by September 2016. Approval of the change would move the M16 to support personnel, while armories already had the 17,000 M4s in the inventory needed to outfit all infantrymen who needed one. The price is slightly inferior ballistic performance compared to the full-size M16, with its 5.5" (14 cm) longer barrel. Only 9 left in stock - order soon. The benefits of these changes, however, have come under scrutiny from both the military and civilian firearms community. With the latter, one just roles the gun in slightly, with no need to move head at all. The distinctive step in its barrel is for mounting the M203 with the standard hardware. Visible and IR (infrared) lights of various manufacturers are also commonly attached using various mounting methods. Quick View. So, it is with this experience that they’ve learned how to best set up their rifles based on the threats they face. Scope: Vortex Strike Eagle 1-8x, offset red dot combat optic is an issued EOTech MRDS. [citation needed] The Model 935 Commando has the features of the Model 933, but has three-round burst fire instead of automatic. The Marine Corps, however, chose the full-sized M16A4 over the M4 as its standard infantry rifle. The difference is that the weapon fires M855 cartridge instead of the .223 Remington rounds. Thanks to photos and feedback sent from previous team members of their rifle setups, they’re currently employing overseas as of Fall 2018, I have just enough to present to you: The Competition-to-Combat Crossover Part IV. The M4 Carbine, or just plain M4, is a shortened derivative of its predecessor and big brother, the M16. An array of firearms accessory makers have offered gas piston conversion kits for the M4. This relieves stress on parts and helps to increase accuracy. [57], In early 2010, two journalists from the New York Times spent three months with soldiers and Marines in Afghanistan. Like other firearms, failure to properly maintain the M4 can result in malfunctions. These heavier barrel weapons are also fitted with a heavier buffer known as the H2. The M4A1 is used by almost all U.S special operation units including, but not limited to, Marine Force Recon, Army Rangers, Army Special Forces, Navy SEALs, United States Air Force Pararescue and Air Force Combat Control Teams. New optics and handguards made usage of the M4 easier, and good weapon maintenance reduced the number of misfeeds. Nothing new from SOCOM yet. Also note Lancer extended magazine well. In the video, he demonstrates his "Arm West LLC modified M4", with enhancements he believes necessary to rectify the issues with the weapon. This item: US PeaceKeeper Products M4 Rapid Assault Tactical Case, Black, P30032, 32" $42.89 Only 9 left in stock (more on the way). [22], On 21 April 2012, the U.S. Army announced to begin purchasing over 120,000 M4A1 carbines to start reequipping front line units from the original M4 to the new M4A1 version. Phase II of the PIP explored developing a new bolt carrier. The extended barrel improved the XM4's ballistics, reduced muzzle blast, and gave the XM4 the ability to mount a bayonet and the M203 grenade launcher. [38] Though in service with special forces, combat in Afghanistan showed the need for providing automatic suppression fires during fire and movement for regular soldiers. Some of those visual similarities are obvious in both weapons. Jeff Gurwitch is retired U.S Army Special Forces (SF). The M4 Carbine features a realistic flip-top break down design like a true M4/AR. [46], By late 2002, 89 percent of U.S. troops reported they were confident with the M4, but they had a range of problems. This is something I also addressed previously in Part III, the lack of BUIS on rifles. These weapons, known by Colt as the Model 921HB (for Heavy Barrel), have also been designated M4A1, and as far as the government is concerned the M4A1 represents both the 921 and 921HB. The M4 Carbine is a 5.56×45mm NATO, air-cooled, gas-operated, direct impingement, magazine-fed, select fire carbine. The case can also be made that single-optic guns are also becoming a thing of the past. Features: Barrel: 1.5" 5.56 NATO M4 profile barrel, carbine length gas system, 1:7 twist, fully machined with Nitride extension, M4 feed ramps, 41V50, Nitride bore and chamber for optimum performance, accuracy and durability. 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"US Army Places Order For 24000 M4 Carbines With Remington", "Colt again blocks Army's advanced M4 plans", "FN Manufacturing Wins Contract to Supply M4A1", "FN Manufacturing to deliver M4/M4A1 Carbines to US Army", "M4 CARBINE PRODUCT IMPROVEMENT PROGRAM (PIP)", "Army Wants Upgrades to Improve M4A1 Carbine's Performance, Accuracy", "Army ditches plans for additional M4 carbine upgrades", "Animation of the gas system of the M4 carbine", "Marine Unit in Norway First to Deploy with Rifle Suppressors", The Marine Corps Plans on Fielding Suppressors to Infantry Squads Starting this Year, Marine Corps to start widespread distribution of suppressors, "Carbine Competition Fails to Find Improvement Over Current Weapon", "Army infantry beginning adoption of upgraded M4A1 carbines", "CQB Receiver – M4A1 Carbine with10-Inch Upper Receiver", "Colt's Advanced Piston Carbine, the LE6940P In Stores", "Interview & Shooting: Jim Sullivan, AR-15 Designer", "Soldier Perspectives on Small Arms in Combat", "Brownells shipping M16 magazines with anti-tilt follower to military", "Army begins shipping improved 5.56mm cartridge", "Newer carbines outperform M4 in dust test", "The Army's M4 Carbine: Background and Issues for Congress", "Examining the Complaints About American Rifle Reliability", "Army: Gun Makers Didn't Meet Reliability Standard", "Best AR-15 Piston Uppers & Conversion Kits [2019]", "Malaysia has licence to make M4 assault rifles", "FindLaw's United States First Circuit case and opinions", "OpenJurist synopsis of denial of Colt's appeal to 08 Dec 2005 ruling", United States Army Logistics Management College, "New Afghan Commandos Take to the Frontlines", "FOTOT/ Ushtria shqiptare tregon "dhëmbët, "Colt Capitalizes on Foreign Military Sales Program - The Firearm Blog", "Clearance Divers, Maritime Tactical Operations", "Dhaka Metropolitan Police SWAT - Overview", "Bangladesh Military Forces - BDMilitary.com", "DOU 05/07/2012 - Pg. Compared to the standard M4, which in automatic fires 750-950 rounds a minute, the rate of fire of the Arm West M4 is heavily reduced both to save ammunition and reduce barrel wear. This variant of the rifle is fully automatic and has a heavier barrel, and is given ambidextrous fire controls.
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