PRODUCT SPECS

Action: Semi-auto direct impingement

Gas System: Mid Length Gas System

Chamber: 5.56 NATO. This upper will also shoot .223

Twist Rate: 1/7 button rifled

Pivot/Takedown Pin Size: Small pin - .250"

Muzzle Device: Thread 1/2 X28    ARD MUZZLE BRAKE

Barrel: 16" M4 , 4150V steel, chrome moly, heat treated, Black

Handguard: ARD RIFLE length Free Float

Upper Receiver: Forged 7075 T-6  Mil-spec with t-marks  

 type 3 hard coat anodizing with forward assist and ejection port plate

Muzzle Device: Thread 1/2 X 28 (ARD AMERICAN RIFLE MUZZLE BRAKE)