I built this AR-9 from a Bear Creek Arsenal 4" complete upper and a Tennessee Arms Co. Full Lower. The gun will ship disassembled. Accepts Glock mags. Will come with 1 16-round magazine.

I've put less than 200 rounds through this gun. It cycles and works perfectly. I did have to change the recoil spring out for a slightly lighter one because of the shorter barrel. I will also include the original. I've added some Picatinny pop-up iron sights and an MLOK sling mount.