The Nightstick TCM-5B is a subcompact weapon-mounted light specifically engineered for narrow-rail and short-rail pistols. It delivers 650 lumens using a TIR lens that provides a tight bright spot and a defined outer halo for situational feedback. Black aircraft-grade 6061-T6 aluminum construction, OAL 2.50, Weight 2.25 oz, waterproof. The unit features intuitive ambidextrous toggle switches for momentary and constant operation, plus a battery-safe mode. It is compatible with a wide range of models including Glock MOS, Sig P365 X-Macro, and Springfield Hellcat. Powered by an included CR123 battery, it provides a 2-hour runtime and includes all necessary mounting hardware.