Aero's AR15 Enhanced Upper Complete Upper features an Aero Gen 2 Enhanced Handguard, quick disconnect sling sockets, enhanced milling design for grip and visual appeal, and a new profile for the picatinny top rail. The upper is constructed of forged 7075 T6 aluminum with an installed forward assist and port door. The Gen 2 Enhanced Handguard is free-floating with 6061-T6 aluminum rail, scalloped rails, and built in anti-rotation tabs. Its stainless steel barrel features a bead blasted finish, rifle length gas system, and a DPMS barrel extension. This 6.5 Creedmoor model has a 20" threaded barrel with 5/8x24" tpi threads, and black finish handguard with M-lok configuration. NOTE: This complete upper does not include a BCG or charging handle.