This is a FACTORY BUILT PSA 9mm AR Pistol. I added an SB4 brace and an ERGO grip. The barrel is 4", and the length overall is only 21.25". No marks on it. 2 Glock pattern mags included, and I have more if you want to buy more. $600 near me, or $575 without the brace. I took the brace off June 1st, but I still have it. Have factory manual, but no box. No newbies, sorry.
