This gun is a 8.5" barrel 300 Blackout AR Pistol with a 7" Radical Firearms quad rail upper and a PSA AR pistol lower. This AR Pistol comes with a Sig Sauer pistol arm brace, a Primary Arms red dot scope, metal flip up BUIS, a Magpul MOE pistol grip and AFG, and a tennis racket case with custom form fit foam insert I've used as a discreet gun case for this AR. In addition, I am also selling this gun with 2 Magpul 20 round Gen 3 PMags, 450-500 rounds of 147 gr supersonic, 70 rounds of Remington UMC 220 gr subsonic, and 67 rounds of Victis Munitions 203 gr subsonic 300 Blackout rounds. I've shot all three of these rounds through this gun and it feeds and fires all of them like a champ. Haven't had any problems with the gun running about 150 rounds through it. Very reliable, compact, and tons of fun to shoot. Would make a great truck gun or easy way to get into the 300 Blackout caliber. Feel free to contact me if you have questions or want more pictures.