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It is compatible with most standard AR-15 parts, and has the ability to accept all AR15/M16 type STANAG magazines. Unlike the current Colt M4 Carbine which features a 4-position telescopic stock, the Bushmaster has a 6-position. 223 Remington and 5.56 x 45 mm NATO cartridges, and the barrel is hard chrome lined in both the bore and chamber. cite web | url = | title = Bushmaster military models - Bushmaster M4 A2/A3 Type Carbines| publisher = Bushmaster Firearms International | accessdate = | date = 2007 ] The rifle accepts both. However, it can be ordered by military or law enforcement organizations with three-round burst or fully-automatic capability. The M4 Type Carbine is effectively a reproduction of the Colt M4 Carbine, but is usually only semi-automatic for legality within the U.S.
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The M4 Type Carbine is a firearm manufactured by Bushmaster Firearms International, modeled on the AR-15 platform. Manufacturer= Bushmaster Firearms International Used_by= Over 60 nations cite web | url = | title = Bushmaster around the world | publisher = Bushmaster Firearms International | accessdate = | date = 2007 ] (700–950 round/min for fully-automatic model) 223 Remington, 5.56 x 45 mm NATO, 6.8 mm Remington SPC Sights= Adjustable front and rear iron sightsĬartridge=. Caption= Bushmaster M4A2 and M4A3 with the 'Izzy' flash suppressor