The AR15 Assembled Upper Receiver comes with the port door
already installed. This specific model does not have forward assist provisions.
Forged from 7075-T6 aluminum, this assembled 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
takedown pin holes
forward assist provisions
Assembled Upper Receiver Without Forward Assist in Anodized Black