Weapons daily - COLT M4A1 COUNTRY OF ORIGIN: UNITED STATES INITIAL YEAR OF SERVICE: 1994 CALIBER: 5.56x45mm RATE OF FIRE: 700-950 rounds per minute OVERALL LENGTH: 33 inch The M4 carbine is
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Colt CR6920 M4 5.56 16.1 Carbine with Centurion Rail
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