2PCS 100MM Rail Mount, 11mm to 20mm Dovetail Picatinny Weaver Rail Extension Adapter, High profile+Low profile 9 slots Scope Mount Base Medium Profile Base Riser Mounting
Precision Material – Premium out of aircraft grade aluminum alloy and black hard coat anodize finish, sturdy & durable.
Convert 11mm Dovetail to 21mm Picatinny Rail – 2.94 inches length at the base, the picatinny rail extends 3.94 inches allowing for more flexible optics placement.
Mount Base – Fit 11mm dovetail mounts, Base mount 3/8″ to 7/8″ converter adapter. Low profile 0.59″+ Hight profile 0.78″ riser rail for scope.
Top With 9 Slots Weaver Style Rail – Top 21mm picatinny rail allows for the mounting of picatinny or weaver standard scopes, red dots or other accessories.
Easy To Install – Rail adaptor installs easily via dovetail mount and one vertical stop pin, attached allen wrench can help you to tight stable and no shaking!