PSA Gen4 16" 9mm Nitride 1/10 13.5" Lightweight M-lok Railed Upper - With BCG & CH

Barrel: 16" chrome moly steel barrel. Chambered in 9mm, (9x19), with a 1/10 twist. The barrel is nitride treated for durability and finished off with a Palmetto State Armory 13.5" Lightweight M-Lok free-float rail and a 9mm birdcage flash hider. Upper: 6061-T6 Aluminum AR upper is hard coat anodized black for durability. These slick side upper receivers are made for us right here in the USA.Bolt Carrier Group: AR-V 9mm BCG. Phosphate Coated 8620 steel, with enhanced firing pin and external 5.56 style extractor. The bolt carrier group is compatible with most aftermarket fire control groups. *PSA Can't Guarantee Function With EndoMag 9mm Magazines