Crimson Trace rail mount rifle light with remote switch and mount. Light has three modes: high, low and strobe with temporary on and fixed stay on. Also has activation switch with momentary and stay-on pressure pads with M-Lok mounting capabilities. Includes light, mount, switch, Velcro tie down straps for switch as well as zip ties for securing switch/cable. 3M adhesive strip attachment for switch has never been used. Takes two CR123 batteries (new Energizer batteries included). Lightly used and in good condition, shows some minor cosmetic wear from having been in the mount.