CVA Accura MR-X 45 Cal 209 Primer 26" Fluted TB Sniper Gray Cerakote Rec/Barrel Fixed w/Adjustable Comb Veil Alpine Stock Includes PalmSaver Ramrod & Quake CLAW Sling he Accura MR-X is a shorter-barreled Accura muzzleloader (the MR stands for Mountain Rifle) and features a 26" Bergara Barrel. 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.