The unique FOXTROT1X mounts to any Picatinny 1913 SIG SAUER proprietary or Glock rails with no need for adapters or cross-slot modifications. Dual finger-actuated tact switches support ambidextrous use while functioning in either continuous or momentary mode. The ultra-efficient white LED runs for over 1.5 hours at 450 lumens on a single CR123 battery. The rail-mounted light is ideal for home defense law enforcement or military applications and should fit most holsters designed for handgun lights. Compatible with all compact & full-size SIG SAUER pistols including: P320 Compact XCOMPACT XCARRY XFIVE Full-size Carry (not Sub-Compact)M17 M18P226 & MK-25 (with accessory rail) P229 (with accessory rail) P220 (with accessory rail) SP2022 (with accessory rail) 1911 (with accessory rail) MCX MPX 516 716 M400 with Picatinny rail. Does not fit: P365 P365X or P365XLLIMA GRIP MODULES.