For current models 760, 66, 2100 (Pellet operation only), 2200, 781, AS2250, AS392, 392LE. This sight is strong, rugged and dependable. Despite light-weight 1-1/2 oz. compact alloy comprisal, this sight has a tensile strength of up to 85,000 lbs. Includes target knobs for easy adjustment, internal micrometer adjustments with positive internal locks and a .093 diameter aperture. May also fit many other airguns and .22 rifles with dovetail grooved receivers. (No Drilling and Tapping required) .350 at lowest.