Nordic Components NC15 Extruded Stripped Upper, Fits AR15, Black Finish, Upper Receiver Eliminates Dust Cover and Forward Assist, Compatible with Milspec BCGs/Charging Handles/Barrels/Most Handguards, Flat Top Picatinny Rail, 7029-T6 Aluminum, Weight 10oz NC15-UR-EXT Building a bench gun or varmint rifle? Have a 50-year old axe to grind with the military for insisting on a forward assist? Whatever the reason" Nordic's extruded upper provides an economical option for those ARs that just don't need all those other bits stuck on the side of the upper.