The Lasersaddle is a laser sighting solution for Mossberg 500, 590 and 590 Shockwave 12/20 Gauge Shotguns. Attaching seamlessly to the receiver, the LS-250 provides multiple ambidextrous laser activation pad points for instant targeting with a powerful 5mW red laser. User-adjustable for windage and elevation. Features a Master On/Off Switch for completely powering down the system. Includes two CR2032 batteries. *Fits Mossberg 500, 590 & 590 Shockwave in 12 Gauge and 20 Gauge only. Models must have receiver that is drilled and tapped. ** Does not fit .410 Bore or Mossberg 500 ATP with provided screws.