Designed to securely attach to the rail and trigger guard of 1911 non-rail firearms. Designed to securely attach to many non-rail 1911 handguns including: KIMBER Colt Ruger and Smith and Wesson, Sig Sauer, Para USA, Remington, Springfield Armory Ultra- lightweight and compact Batteries can be replaced while light remains mounted on gun No need to resight laser after battery change Windage and Elevation adjustment screws mounted in brass bushings for long life and dependable zero retention of laser Operating temperature: -20AdegF to +120AdegF IPX4; water resistant; 1m impact resistance tested Operating temperature: -20AdegF to +120AdegF. IPX4; water resistant; 1m impact resistance tested Serialized for positive identification C4 LED delivers 100 lumens; 2,000 candela; 89m beam Runs 1 hour (LED only or LED/Laser combo) Laser only function runs 11 hours Features a 10 minute auto shut-off to conserve batteries Optimized electronics provide regulated intensity Parabolic reflector produces a balance of beam and peripheral illumination Removable cover makes the light easy to attach/detach Windage and elevation adjustment screws mounted in brass bushings for long life and dependable zero retention of laser Operating temperature: -20Adeg F to +120Adeg F Durable, impact-resistant polymer construction; IPX4 water-resistant 1m impact resistance tested Serialized for positive identification 2.20" (5.88 cm) 1.12 oz. (32g) - 1.16 oz. (32 grams) with batteries, depending on model Limited lifetime warranty Visit www.streamlight.com for full warranty information