All Aero parts, bought assembled completed upper and lower, I didn't do anything aside from put the charging handle and BCG in it. Charging handle is Aero AR10 Breach, BCG is Aero 308 nitride, magpul K2 grip, and PRS Lite Stock. Aero A2 Flash hider. No magazine, no box, zero rounds through it. Must be willing to sign BOS. Thanks for looking!