• .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, 2PCs/Set • Removable Stop Pin for Extra Secure Installation