BHI-15 (S) Complete Upper Receiver, Slick Side Receiver

·         Slick Side, Billet, Flat-Top Upper Receiver

·         Semi-Auto Bolt Carrier Group

·         16" Criterion Barrel

·         1:9 Twist

·         5.56mm NATO

·         Mid-Length Gas System

·         Vltor Low-Profile Gas Block

·         Blackheart International Mid-Length Handguard

·         Surefire Suppressor Adapter/ Flash Hider