This Osprey Mini Red Laser is the perfect quick addition to any firearm. The extra bright red laser has a four-point alignment system for improved accuracy and ease of calibration. Osprey made the casing and electronic components shock resistant; engineered to withstand tough conditions. The Mini Red Laser is a economic addition to any weapon with a rail system. It has a very simple elevation and windage adjustment and a single on/off switch making it effortless to operate. It is backed with Osprey’s industry leading no-nonsense lifetime warranty.