Crimson Trace Rail Master Universal Rail Mount- 200 Lumen White Light

Features:Attachment:M1913/Picatinny Rails or Weaver RailsActivation:Tap On, Tap OffAuto shut-off:5 minutesMaterial:PolymerMaster On/Off Switch:NoBeam intensity:100 lumensLight source:LEDBattery Life:2 HoursBattery Type:CR2 Lithium (1)Light Modes:Constant On/Off, Momentary Strobe, Momentary OnFits:1911 Government or Commander with RailAR-15/M16 or similar rail-equipped long gunsBeretta PX4 Full Size and Compact, 92 VertecGLOCK 3rd Gen 17, 19, 20, 21, 22, 23, 31, 32, 34, 35, 38GLOCK 4th Gen 17 and 19Heckler & Koch (HK) P30, 45, 45CRuger SR9, SR40, SR9c, SR40cSig Sauer P220, P226, P229Smith & Wesson M&P Full-Size and CompactSmith & Wesson SDSpringfield Armory XD and XD(M)Taurus Millennium Pro, 24/7Most other rail-equipped pistols with a minimum of 1 1/16" from recoil lug.