Description The AR15 Stripped Upper Receiver is one of our most popular products. Forged from 7075-T6 aluminum, this stripped upper is precision machined to mil-spec M16/M4 specifications and features M4 feedramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit. Features: M4 Feedramps .250 takedown pin holes Includes: AR15 Stripped Upper Receiver in Tungsten (info on Cerakote Firearm Coating)