Ultra lightweight & compact, the TLR-7 sub Weapon-Mounted Tactical Light features the latest in LED technology for high lumen operation and provides 1.5 hours of continuous runtime from a single lithium battery. 500 lumen output delivers a powerful beam with extensive range, good peripheral coverage and selectable strobe mode. Featuring a specialized clamp and key system for mounting on many 1913 short railed subcompact handguns including the Smith & Wesson M&P M2.0TM Subcompact.