Streamlight TLR-RM2 Rail Mounted Tactical Weapon Lighting System - The TLR RM 2 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. 1,000 lumens; 200 m beam; runs 1.5 hours; 3 hours on strobe 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 two CR123A lithium batteries (included) IPX7; waterproof to 1m for 30 minutes 4.55in (11.55 cm); 4.55 oz. (129.0 g)