This is an ARMALITE AR-10 originally chambered in a 300 RSAUM now its re barreled in a 300 Winchester short magnum. Only reason it was re barreled was the price and availability of the RSAUM. Only a box of rounds through the new barrel. 20 inch stainless barrel with screw on muzzle brake. Bi pod and a MK4 4-14 Tactical Leupold scope (knockoff). I am looking to trade it for a couple of AR15's or ??. The worst I can say is no. Its very nice. No hurry to sell. I can email the video or more pictures if needed.