Leapers UTG .22 caliber/airgun to Picatinny/Weaver low Pro snap-in adaptor. Features: - 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 caliber/airgun rails, 2pcs/set - removable stop pin for extra secure installation. Specifications: - length: 1" - width: 0.93" - height: 0.24" - weight: 0.18 oz - material: aluminum - rail type: Picatinny/Weaver - color: black