The Streamlight TLR-1 RM 1 is a lightweight and compact weapon-mounted tactical flashlight that features the latest in shock-proof LED technology for high-lumen operation. The TLR RM 1 provides 1.5 hours of runtime from a single CR123 lithium battery delivering 500 lumens output. The TLR-1 RM 1 has three different models to choose from: the Streamlight 69440, 69441, and 69442. All three Streamlight models deliver a powerful beam with an extensive range, good peripheral coverage, and a selectable strobe mode. Ergonomically friendly multi-function tactical tail switch. All three Streamlight TLR-1 RM 1 models, 69440, 69441, and 69442 securely attach/detach from any long gun with a MIL Standard 1913 Rail. Kindly confirm compatibility and fitment before purchase. The Streamlight 69440 includes the light, tail cap switch, remote pressure switch, mounting clips, battery, and key kit. The Streamlight 69441 includes the light, battery, and rail locating keys, and the Streamlight 69442 includes the light, the battery, and the dual remote switch.