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The M4A1 Carbine Close Quarter Battle Weapon (CQBW) is the standard weapon for those in the reconnaissance platoons. The current Marine Corps wisdom is that the M4A1 Carbine is to supplement, rather than replace the M16A2 (just as the MP5N sub-caliber machine gun did) in the Force Reconnaissance Companies. This may soon change as the Marine Corps is considering replacing all M16A2’s in the Marine Corps with the M4IM4A1 Carbine or the M16A4. The impetus for this move is the growing trend of MOUT (Military Operations in Urban Terrain) worldwide.
The M4 program originated as an initiative by the government of Abu Dhabi in the mid 80’s. The OIC of (then) Firepower Branch, (then) Maj. Jack Muth, brought several examples back to Quantico and tested them extensively.
A recommendation was made that the M4 replace all of the pistols in the Infantry Bn. (much like the U.S. Carbine, Cal .30, Ml/M2 was supposed to do during WW2) as well as being used by reconnaissance community, ANGLICO and others.
Congressional interference killed that proposal, and it languished until 1994 when USSOCOM picked up the fumbled ball.
The M4A1 Carbine is selective fire (that is, full auto - only the M4 Carbine has the 3 shot burst), has a 4 position collapsible stock, is 33" long with the stock extended, 29" long with the stock retracted, and weighs 7.5 pounds. The barrel is 14.5" long. (All but a very few of the M4 carbines have a flat top receiver. All M4A1 ‘s have a flat top).3
The collapsible stock provides a degree of ergonomics not possible with the M16A2. As stated above, the 13 5/8" length of pull (LOP) on the A2 is too long for most people to acquire a good fighting stance. Add to that body armor, load bearing vests, or cold weather clothing, and the weapon is way far out in front of the shooter.
Many operators run with the Carbine stock back to the first position or completely closed. It provides for a more comfortable and efficient position.
The Company Carbines are equipped with the Special Operations Peculiar Modification (SOPMOD) Kit. This is slightly different from that issued to USSOCOM in content. The Company has three modifications to their Carbines that the USSOCOM kits do not.
All of the M4A1 Carbines in the Company have the Norgon ambidextrous magazine catch; the DPMS ambidextrous selector switch and the Badger Ordnance extended charging handle latch.4
The Carbine has a Knight’s Armament Corporation (KAC) Rail Adopter System (RAS-P/N 98064) mounted. The RAS is a set of lightweight specially modified handguards that replace the standard M4 handguards. The RAS provides a secure mounting point for various mission related equipment by means of a series of MilStdl9l3 grooves. Each groove is marked with an address to assist in returning a particular item to the same location. |
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