Zero in your aim with this pistol laser sight from NcSTAR. Discreet and compact, it can fit snugly onto the lower receiver of BB, pellet, and airsoft pistols. A side rail clamp allows for easy installation and is compatible with weaver or picatinny rails 1.7 - 2.0 inches long. An integrated KeyMod undermount provides space for further accessories to be attached. The laser is adjustable for windage and elevation, and can be set to strobe mode. This model features a 650nm red light powered by two CR1/3N batteries (included).