CornerstoneLower fans have been asking for years now; “Do you make a forgedupper with the same gorgeous anodizing and tight fit as your lower?Ask and ye shall receive!Finally you can grab what we consider thebest forged upper in the biz, and it is a perfect companion for yourGGP Cornerstone Lower receiver. After all, accuracy comes from tight,precise tolerances that minimize all variables from the moment thehammer strikes the firing pin until the round leaves the muzzle. Byperfecting the critical tooling dimensions to the smallest degree, aforged receiver can punch the same hole down range. Machined to tighter than Mil-Spec tolerances, the critical tooling dimensions are held to within +/ – .001″ Machined from forged 7075-T6 Aluminum Black Hard anodized with a surface hardness of 60 Rockwell M4 Feedramps .250” Takedown pin holes Engraved T-marks Functions with nearly all available AR-15 parts kits and lowers Match with our Cornerstone lower receiver for a solid and dependable fit Stripped Receiver DOES NOT include port door, forward assist or any small parts Weight: 0.4lbs
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