The ACCURA MR-X is our shorter-barreled ACCURA muzzleloader (the MR stands for Mountain Rifle) and features a Bergara Barrel in either bare stainless steel or Nitride treated stainless steel. The MR-X is designed for hunters seeking a rifle that is both light to carry in the mountains and easy to maneuver in tight situations like thickets or tree stands yet still capable of reaching on out there when necessary.