Designed to securely attach to the trigger guard of GLOCK 42, 43, 43X or 48 only. Using this light/laser combination on subcompact handguns allows for easier identification of potential threats before taking action. Features LED illuminator and a 640-660nm red laser. Runs 1 hour (LED only or LED/laser combo) 11 hours (laser only). Parabolic reflector produces a balance of beam and peripheral illumination optimized electronics provide regulated intensity red laser provides long-range targeting. All modes feature a 10 minute auto shut-off to conserve batteries. Batteries can be replaced while light remains mounted on gun no need to re-sight laser after battery change. Uses two CR1/3N lithium batteries (included). Removable cover for easy attachment/removal. Windage and elevation adjustment screws mounted in brass bushing for dependable zero retention of laser. Contoured housing securely attaches to trigger guard. Durable, impact-resistant polymer construction IPX4 water-resistant 1m impact resistance tested. Operating temperatures of -20 to +120 Degree Fahrenheit. Serialized for positive identification. 2.30-Inch (5.84 cm) to 2.97-Inch (7.54 cm) depending on model. 1.12-Ounce (32 grams) to 1.27-Ounce (36 grams) with batteries depending on model. Limited lifetime warranty. Battery Type : CR-1/3N Lithium.