Leapers - Adapter Mounting Rail 11 mm Dovetail / 22 mm Picatinny
Mounting rail that acts as an adapter from an 11mm Dovetail to 22mm Picatinny airgun mount. The simultaneous increase in mounting allows the use of spotting scopes with a larger diameter. Made of aviation aluminum.
Adapters
UTG Weaver-to-11mm or 3/8 Dovetail Adapter, 2pcs - Scope Mounts
Leapers UTG .22/Airgun to Picatinny/Weaver Low Pro Snap-in Adaptor
ohhunt Dovetail to Picatinny R-ail Adapter 11mm
How-To Mount a Scope on an 11mm Dovetail Rail - Airgun Bootcamp
UTG Leapers MNT-DTW145 Inc., Dovetail to Picatinny
Leapers saves the day: UTG 3/8″ dovetail-to-Weaver adapter
UTG .22/Airgun to Picatinny/Weaver Low Pro Snap-in Adaptor
Scope mounts for 11 mm Dovetail - Optics-Trade
Holosun 509 Low Mount - Fits Picatinny, Black
Scope base recommendation, Airgun Forum, Airgun Nation
UTG Leapers, Inc. - Hunting/Shooting, Sporting Goods and Security Gear
Accushot 30mm High Rings for 11mm (3/8 inch) Dovetail 2 Piec