Colt

Action: Semi-Auto - Caliber: 223 Rem/5.56x45 NATO - Capacity: 30+1 - Sights: Fixed Front Adjustable Rear - Twist: 1:7 - Barrel Length: 20 - Overall Length: 39.5 - Weight: 7.71 lb - Safety: Ambidextrous - Finish: Anodized - This Semi-Automatic Colt Rifle is a throwback to the full size AR-15 which gave birth to the Modern Sporting Rifle. The AR15A4 is defined by it's 20 1:7 Twist Government Profile Chrome Lined Barrel and A2 Fixed Buttstock. It also features a flat top upper receiver with a detachable carry handle.