Strong, lightweight, aluminum mount attaches to the RugerA(R) factory ring cuts and requires no drilling and tapping. Uses three, steel, recoil pins to prevent "scope flyoff," and accepts Weaver-style rings or mount systems such as used on Tasco 40mm red dot optics. Super Redhawk(TM) .44 Mag fits only the .44 Magnum and can be installed without removing the front and rear sights. Features a matte, silver, anodized finish. Super Redhawka Casull is similar in design, but uses the rear sight notch as a recoil lug to allow the frame and mount to take maximum recoil. Fits .44 Magnum, .454 Casull, and Ruger(TM) .480 models with removal of the rear sight. Available with Mfg: Weigand Combat SPECS: .44 Mag - Aluminum, silver, matte, anodized finish. 5" (12.7cm) long. Fits .44 Magnum only. 2.6 oz (73g) wt. Casull - Aluminum, black, matte, anodized finish. 5A 1/2" (14cm) long. Fits .44 Magnum, .454 Casull, and .480 RugerA(R) models. Includes mounting screws.