Streamlight TLR-4G Compact Tactical Light CR2 Lithium Battery Heckler & Koch USP Green 160 Lumens Black. This Tactical Light from the illumination professionals at Streamlight is made with a C4 LED and a direct drive green laser (510-530nm) that is impervious to shock and has a 50000 hour lifetime. The one-handed snap-on and tighten interface on the Streamlight TLR-4G Weapon Light keeps hands away from muzzle when attaching/detaching. The Streamlight 160 Lumen TLR-4 G Flashlight and Laser has windage and elevation adjustment screws that are mounted in brass bushings for long life and dependable zero retention of the laser. Specifications for Streamlight TLR-4G Compact Tactical Light: Manufacturer: Streamlight Light Output: 160 lumens Bulb Type: LED Battery Type: CR2 Lithium Beam Color: Green Color: Black Length: 2.73 in Weight: 2.8 oz Gun Make: Heckler & Koch Weather Resistance: Water Resistant Finish: Black Gun Type: Pistol Run Time: 1.75 Hours Blade Material: Metal Attachment Type: Universal Fabric/Material: Polymer Features of Streamlight TLR4 G Green Laser and Tactical Flashlight: C4 LED direct drive green laser (510-530nm) impervious to shock with a 50000 hour lifetime. Borofloat high-temperature glass lens One 3 Volt CR2 lithium battery with a shelf life of ten years Ambidextrous momentary/steady on/off switch Three position Mode Selector switch for Laser only LED illumination only or both Laser and LED. Ultra-lightweight and compact Ambidextrous momentary/steady on/off switch One-handed snap-on and tighten interface keeps hands away from muzzle when attaching/detaching. Securely fits a broad range of weapons using key kit provided (key kit not provided with H&K USP models) Windage and elevation adjustment screws mounted in brass bushings for long life and dependable zero retention of laser Operating temperature: -20 F to +120 F. IPX4 rated- water resistant Serialized for positive identification. Package Contents: Streamlight TLR-4G Compact Tactical Light w/ Green Laser - 160 Lumens Streamlight TLR-4G Compact Tactical Light 69247: CR2 Lithium Battery Heckler & Koch USP Green 160 Lumens Black