NcStar Airsoft/Paintball LED Flashlight/Quick Release Weaver (AQPTF) LED flashlight designed for airsoft/paintball pistols or rifles Hard-anodized aluminum construction with reinforced nylon 35 lumens output; right-to-left toggle switch Runs on CR123A lithium battery; measures 2.95 inches Quick-release mounting latch attaches to Weaver/Picatinny style rails Will quickly and securely mount onto most Weaver/Picatinny type rails, but not all (depending on the location of the cross-slots on the rail itself).