The Foxtrot1X weapon mounted light features 450 lumens with 1.5 hours of runtime. It is powered by CR123 battery, loaded via a removable bezel with lockout mode. The M1913/Sig and Glock sliding rail interface plates included for maximum location adjustment range on the rail. It has an ambidextrous push-button side switches, with momentary and latching modes. Compatible with all compact & full-size SIG SAUER pistols. * Does not fit P365, P365X, P365XL and LIMA Grip Modules.