The Leapers UTG Dovetail to Picatinny Weaver Adapter Mount is a 3.94 inch scalloped Picatinny Rail with 9 slots and a 0.59 inch saddle height provides ample space for snag free mounting of different sized optics and flexible eye relief adjustment. It is compatible with most 9mm-11mm, flat or rounded, airgun and shotgun dovetail rails. It features three high strength locking screws to ensurea solid mount-to-receiver lock up. It is machined from aircraft grade aluminum and finshed in a matte black hard coat anodize with recoil resistant stop pins to aid in additional zero retention against bidirectional recoail force typical of spring operated airguns.