Colt AR-15A3 AR6721 Tactical Carbine .223 Rem / 5.56 NATO 16.1" Heavy Barrel 30 Rounds MBUS Rear Sight Black M4 Buttstock AR6721

The Colt AR-15A3 is an exceptional patrol rifle with tactical accuracy chosen by many federal, state, and local agencies. The 16.1" heavy barrel with a 1:9" rifling twist allows flexibility in ammunition selection from 45 grains all the way up to 69 grains. The telescopic M4 stock adjusts to four positions to enhance mobility and fit to a wider range of operators. The Magpul MBUS rear sight is the ultimate back up iron site. The flat top upper receiver allows for easy mounting of optical, night vision and other tactical sighting systems. The tactical carbine is the answer to all the requirements of modern law enforcement, defensive use or all around carbine. Includes a 30 round PMAG 30 magazine. Specifications and features: Colt AR-15A3 AR6721 Tactical Carbine 5.56x45mm NATO caliber (accepts .223 Remington) 16.1" chrome-lined heavy barrel 1:9" RH twist, 6 lands and grooves Gas operated, multi lug rotary locking bolt 30 round polymer magazine Forged A3 flat top upper receiver Fold down rear sight Anodized aluminum upper/lower receivers Standard A2 front sight base Two-piece, black plastic handguards with heat shield Black M4 buttstock 35" overall length 7 lbs