Lion Gears Quick Release QR QD 1" Flashlight Picatinny or Weaver Rail Mount for Surefire Fenix Olight Nitecore Eagletac etc Tactical Flashlights Fits Surefire 6P G2 Fenix TK series Olight M20 M30 M22 and other tactical lights with 1" diameter Compatible with all Weaver Picatinny style rails Easy to put on and take it off and mount securely with the spring loaded quick release lever Flashlight lock and quick release tension adjustment secure the light tight Aircraft aluminum with a black anodized finish for long lasting performance