CVA Variflame Conversion Kit Qrbp For Accura Mr-x/lr-x. This conversion kit removes and replaces the accura rifling with a smooth bore model that allows for tighter tolerances and prevents sprues from rubbing when firing. It features an enhanced breech plug design that allows for greater concentricity of the projectile group uniformity of burn chambering and a longer flame length. The conversion kit includes everything needed to install the Variflame conversion kit. Since this conversion kit replaces the rifling the Accura Variflame rifles will shoot a wider range of accura rifles than the factory rifling in combination with the AimSHOT Variflame converting plug. Package Contents: CVA Variflame Conversion Kit Qrbp For Accura Mr-x/lr-x CVA AC1737: Variflame Conversion Kit Qrbp For Accura Mr-x/lr-x