The ar15 stripped upper receiver is one of our most popular products.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- port door opening have been enlarged to fit.458 socom and other similar rounds (.450 bushmaster,.50 beowulf, etc.), m4 feedramps,.250 takedown pin holes, laser engraved t-marks, and "xl" portion of aero logo on tang.Works with ar15 lower receivers, compatible with ar15 port door and forward assist.Works with standard ar15/m16 components.Made in the usa.

Receiver Finish: Black Anodized
Type: Stripped