If you're looking to build your own custom AR-15, AR-10, Glock, 1911, or Sig Sauer pistol then US Patriot Armory is the place you need to look! To help you build and complete all your 80% pistol build kits, USPA offers a wide variety of frames and jigs to meet all your gunsmithing needs. Shop now to find the best 80% Frame and Jig complete your custom pistol or rifle build!