This Laser Sight is a rail-mounted laser designed for the Walther P22. The laser sight housing mounts onto the front rail of the P22 and can be easily removed using the push-down buttons on both sides of the unit. Activation button can be found on the side of the sight. The operator can see two small LED dots on the rear of the unit while the laser is activated to confirm successful operation. With a compact frame and specifically designed for this firearm, shoot more accurately with this Laser Sight from Walther. Features windage and elevation adjustments (adjustment tool included). Operates on 2 SR44W batteries (included).