ARD AR15 5.56 STAINLESS IN BLACK DIAMOND FLUTED BULL UPPER 20" COMPLETE
WITH BOLT CARRIER GROUP AND CHARGING HANDLE

PRODUCT SPECS

Action: Semi-auto direct impingement

Gas System: Rifle Length Gas System

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

Twist Rate: 1/8 button rifled

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

Barrel: 20" BULL , 416R Stainless Steel

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)

Bolt Carrier Group: MIL-SPEC Chrome Moly Carrier Carrier Key - Chrome lined
Attached with grade 8 Screws Properly Staked & Sealed gas key
Bolt: Phosphated-Carpenter Steel M.P.I. Heat Treated

Charging handle  : YES