Streamlight TLR RM 1 Long Gun Rail Mounted Tactical Lighting System With Remote Pressure Switches - Black - The TLR RM 1 Laser features independently operating push-button and remote pressure switches to provide the security of knowing you'll always have light. Packaged as a kit offering everything you need to mount to your long gun. White LED illuminator and integrated 640-660nm red laser 500 lumens; 140m beam Runs 1.5 hours (LED only or LED/Laser); runs 60 hours (Laser only); runs 3 hours (strobe) Mode selector toggle switch for Laser only, Light only or Light/Laser combo Features independently operating push-button switch or remote pressure switch Remote pressure switch exits at 90deg providing improved wire routing option while preserving rail space Safe off feature prevents accidental activation; saves batteries Engineered optic produces a concentrated beam with optimum peripheral illumination Securely attaches to long guns with MIL Standard 1913 Rails Packaged as a kit offering everything you need to mount to your long gun (remote pressure switch kit, key kit) Powered by one CR123A lithium battery (included) IPX4; water-resistant 3.20in (8.12 cm) L x 1.18in (2.98cm) W x 1.50in (3.81cm) H 2.97oz (84.2g)