UTG .22/Airgun Dovetail-To-Picatinny Rail Low Pro Snap-In Adaptor - MNT-DT2PW1. .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