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CAR-15 Model 607

From EverybodyWiki Bios & Wiki


The Model 607 CAR-15 Submachine Gun (SMG) was a compact weapon designed by Colt as part of the CAR-15 Military Weapons System for use by special forces and vehicle crewmen. Although the dictionary definition of submachine gun is an automatic firearm that fires pistol-type cartridges, some manufacturers such as Colt, Heckler & Koch, and Zastava Arms have referred to compact carbines as submachine guns to emphasize their short length and to differentiate them from longer carbines.

CAR-15 Submachine Gun[edit]

CAR-15 Model 607 SMG
TypeCarbine
Place of originUnited States
Production history
ManufacturerColt Defense
Specifications
Mass5.3 lb (2.4 kg)
Length28.7 in (730 mm) (stock extended)
26 in (660 mm) (stock retracted)
Barrel length10 in (250 mm)

Cartridge5.56×45mm NATO
ActionGas-operated, rotating bolt (Direct impingement)
Muzzle velocity2,650 ft/s (810 m/s)
Effective firing range400 m (440 yd)
Feed system30-round box magazine or other STANAG magazines.
SightsIron sights or various optics

The CAR-15 SMG was the first AR-15 made with a retractable buttstock, with its overall length being only 26 inches (660 mm) with the buttstock retracted. The retractable buttstock resembled a shortened version of the fixed buttstock, but a two-position latch recessed in the back allowed it to be extended and locked into position, increasing the length of pull by 2.7 inches (69 mm). The barrel is too short to mount a bayonet, so the SMG had no bayonet lug.

About 50 CAR-15 SMGs were made. Most were issued to Navy SEALs and Army Special Forces, though some were also given to Army K-9 units. Since it never went into full production, CAR-15 SMGs were assembled from available spare parts. The first models were made with M16 receivers without forward assists and with shortened pistol grips from the Survival Rifle (see below). The later Model 607A was made with the XM16E1 receiver with forward assist and standard pistol grip. The handguard was made from full-length rifle handguard by cutting it in half and using either the fore or aft pair, after machining the ends to fit the slip ring and handguard cap.

Because of the short barrel, the CAR-15 SMGs suffered from a loud and bright muzzle blast, and a number of muzzle devices were developed to reduce this. The SMGs were initially fitted with the standard M16 rifle's "duckbill" or three-prong flash hiders, which did not alleviate the problem. In September 1966, Colt developed a 3.5-inch (89 mm) long moderator that lessened the noise and muzzle flash, which also increased the weapon's reliability by increasing the amount of back pressure. However, the moderator created its own problems, such as heavy bore fouling and causing tracer bullets to wildly yaw. A 4.25-inch (108 mm) long moderator with six slots and an expansion chamber, which further reduced noise and flash, replaced the previous muzzle device and became standard for the SMG and the Commando series, but fouling and tracer problems persisted.[1]

References[edit]

  1. Dockery, 1997. p. 139


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