Hawke Sport Optics Match Mount 1-inch Riflescope Rings 2-Piece Set for 9-11mm Rail (Medium Height)The Hawke Sport Optics 1 inch Match Mount Rings are engineered with double hex screws to hold your scope firmly in place. They secure the scope in place with double hex screws. They are precision engineered from high grade aluminum with rounded edges prevent scope damage. These 1 inch Match Mount Rings feature reversible dove tail clamps that fit 9 11mm rail. Retractable Recoil Stop Pin High powered air rifles deliver punishing recoil which can shake