Defentac Red/Blue/Green Laser Sight for Pistol/Handgun, Magnetic Rechargeable Beams for Compact Guns W/a Rail, Compatible with Taurus G2C G3 G3C (Red Laser Sight)

21±0.5MM Width Rail is required - The red laser is compatible with Glock 17 19 w/ a rail, which should have cross slot to tighten the laser sight. Bright & Safe Lase - The red laser output <5mW, Class IIIA. The red pistol laser is very safe and highly visible in any environments, which can reach up to 50-100M. during the day and up to 600-1000M at night. Left & Right Switches - Easy ambidextrous activation for left and right-handed users. The red gun laser is made of polymer materials, which offers shockproof and stable experience. Rechargeable Built-in Battery - The red beams for guns is powered by a built-in rechargeable battery, A full charging takes about 1.5 hour and provides about 3-4 hours max running time. You need to know - Please slowly tune Elevation and Windage interactively, only one direction may lock or damage the threads.