Ultra-fast target acquisition, pinpoint accuracy, and wide field of view make Barska's Red Dot AR-15 Scope ideal for handguns, rimfire rifles, shotguns, pistols, blackpowders, and crossbows. Lightweight, compact design features a multi-position, finger-adjustable rheostat for variable reticle control, anti-reflective coating, and integrated mount for optimum performance. Designed specifically for low-light conditions. 100% waterproof and fogproof. Unlimited eye relief; multi-coated, glare-reducing optics; and long battery life. Protected by a 1-year, limited warranty.