Guntec USA AR .308 Gen 2 Stripped Billet Upper Receiver

Guntec USA AR .308 Gen 2 Stripped Billet Upper Receiver: Gen 2 billet upper machined from 6061-T6 aluminum with a flat top to accommodate most sighting configurations. The long version features a round barrel with the .308 ejection port door and a forward assist block that has a set screw to lock it into position; the short version has a round barrel with the DPMS low spec rail height. Specifications indicate compatibility with AR308 and AR-10 platforms. Features: forward assist to function, MIL-A-8625 TYPE III anodizing, slim shell deflector, 1913 Picatinny Rail flat Top with DPMS low spec rail height, matches any brand lower receiver, accepts Mil-Spec .308 ejection port door kit and forward assist kit (not included). Package Contents: Guntec USA AR .308 Gen 2 Stripped Billet Upper Receiver. DPMS Low Profile pattern noted in community Q&A.