The Streamlight TLR-4G Green Laser Light Compact Rail-Mounted is a compact rail-mounted tactical light that seamlessly integrates a powerful green aiming laser, making it an essential accessory for sub-compact and compact weapons. Designed with versatility in mind, this tactical flashlight with laser features advanced C4 LED technology, delivering 115 lumens and a peak beam intensity of 5200 candela for high visibility in long-range targeting. The integrated green laser operates across a wide temperature range from -20F to +120F, providing reliable performance in varied conditions. An ambidextrous momentary/steady On-Off switch and a three-position mode selector allow users to choose between laser only, LED illumination only, or both for optimal adaptability. In LED-only mode, the light runs 1.75 hours; in combination mode it lasts 1.25 hours, and the laser alone can operate up to 4 hours. Constructed from impact-resistant engineering polymer with a durable anodized aluminum facecap, this light weighs 2.81 oz and features a one-handed snap-on interface for easy mounting and detachment on Picatinny rails. The windage and elevation adjustment screw ensures dependable zero retention of the laser, while the textured parabolic reflector provides a concentrated beam with excellent peripheral illumination. With IPX4 water resistance and a high-temperature Borofloat glass lens, this Streamlight weapon light is built for tactical reliability.