Descripton: Uni Max Micro Rail Mount Laser by Lasermax. The Micro is a perfect match for compact and sub-compact pistols with an accessory rail used for CCW. The ambidextrous tap on/off activation will not hang up or snag when holstered or carried in bag, pocket, or belt. Plus, there is a 10 minute timeout feature put in place to preserve the life of the battery which has been clocked at over 5 hours runtime. With its miniaturized design, the Micro delivers the strength and durability needed to withstand the shock of recoil while possessing a sleek contoured look. Specifications: For: Picatinny; Mil-Spec; Weaver Style Rails. Battery Type: 1/3N (1) Accuracy: User-adjusted for windage and elevation. Laser Operating Temperature: 10deg. F - 130deg. F Power Output: 5mW Spot Size: 5/16" @ 7 Yds; 3/4" @ 25 Yds. Ambidextrous power switch. Weighs 0.43 ounces.