Dovetail to Picatinny Rail Adapter, 11mm Dovetail to 21mm Upgraded Build-in Locking Screws Picatinny Rail Low Profile Scope Mount Converter Base 3/8'' to 7/8'' Converter-9 Slots-Black-(1 Pack)

Convert 11 mm Dovetail to 21 mm Picatinny Rail: Dovetail to Picatinny rail adaptor for firearms equipped with 11mm or 3/8 inch dovetail standard and extends 3.94 inches allowing for more flexible optics placement.. Precision Material: Precision machined out of solid structure aircraft aluminum alloy in black matte coating anodizing finish. Upgraded Build-in Locking Screws: Three high strength build-in locking screws of side ensure a solid mount to lock up on rail. No Sliding: Recoil resistant stop-pin on the top provides in additional zero retention against recoil force to prevent the adapter from sliding. 9 Slots Style Rail: 3.94'' picatinny rail with 9 slots with a 0.59'' saddle height provides ample space for snag free mounting of different sized picatinny standard scopes.