BESTSIGHT Dovetail to Picatinny Rail Adapter,11mm Dovetail to 21mm Mount,Picatinny/Weaver Rail Convert Mount-Base Mount 3/8" to 7/8" Converter,Scope Convert Mount

11mm To 21mm Rail Convert Adapter
Precision Machined from aircraft grade aluminum and finished in a matte black hard coat anodize, durable solid structure.
Compatible with 11mm or 3/8" dovetail mounts, can be used to convert to 21mm picatinny rail mount, allowing for more flexible optics.
3.94" picatinny rail with 9 Slots with a 0.59" saddle height riser rail, provides more flexible optics placement and eye relief.
The adaptor's picatinny rail allows for the mounting of standard picatinny scopes, red dots, or other optics.
Three high strength locking screws ensure a solid mount-to-receiver lock up, attached allen wrench can help you to ensure tight enough, keep stable and no shaking.
pack: 2 x 11mm Dovetail to Picatinny Rail Adapter + 2 x Allen Wrench