Aero Precision EPC9. Takes glock 9mm mags. The upper and lower are both factory assembled by aero precison. All I did was put them together and add a brace. I have fired about 200 rounds through it is all, it lives in the gun safe. Shoots very well, runs ball ammo and hollow points. This is one of the few AR 9 mm that has last round bolt hold open. They are relatively hard to find I don’t believe you can buy them as a completed rifle and it seems like aero precision is out of stock all the time. Not interested in any trades. Firm on price, I like it enough I’ll keep it if I can’t get my asking price. RED DOT OPTIC NOT INCLUDED. Call or text mat 201-5227