The Streamlight TLR RM1 500 Lumen Weapon Light is engineered for tactical long guns, delivering a powerful 500-lumen beam with a reach of up to 140 meters and a robust MIL Standard 1913 Rail mount for secure, stable attachment in the field or at the range. This compact, anodized black unit includes a complete mounting kit and a remote pressure switch that exits at a 90-degree angle to optimize wire routing and preserve rail space, while offering independently operating push-button and remote switches for reliable activation with a safe-off feature that conserves battery life. Powered by a single CR123A lithium battery, the TLR RM1 provides about 1.5 hours of continuous use and up to 3 hours in strobe mode, making it a versatile choice for low-light engagement, threat assessment, and signaling. Its IPX7 waterproof rating ensures functionality submerged in up to 1 meter of water for 30 minutes, so you can depend on performance in adverse weather or challenging environments. The engineered optic produces a concentrated beam with excellent peripheral illumination, enhancing target identification and situational awareness in both fieldwork and training. In short, the Streamlight TLR RM1 combines durability, ease of use, and dependable illumination for mounted firearms, providing reliable light where you need it most.