.22/Airgun Dovetail to Picatinny/Weaver Rail Adaptor Innovative Rail Platform to Convert Most .22/Airgun Rails Top Slot with Spring Tension Retraction/Expansion Design to Snap into Picatinny/Weaver Base Extremely Low Profile and Lightweight Precision and Repeatable Alignment Easy Installation with Most .22/Airgun Rails Removable Stop Pin for Extra Secure Installation