Griffin Armament CQB Upper Receiver Assembly AR-15 11.5″ 223 Remington (Wylde)

416R SS barrel manufactured from stress relieved certified barrel steel
Black nitrided for extended service life
Magnetic particle inspected
Button rifled
223 Wylde chamber for optimal accuracy
Mid length gas for softer recoil characteristics
.750″ gas block journal
M4A1 diameter for reduced POI shift / Increased Accuracy & Durability
Air gauged and hand lapped bore
Polished chamber and M4 feed ramps
TRU-BORE™ suppressor quality threads
Suppressor optimized gas ports
.625″ , 1/2×28 industry standard threads