The LS-250 Lasersaddle is a feature-packed laser sighting solution for Mossberg Shockwave, 500 and 590 shotguns. Attaching seamlessly to the receiver, the LS-250 provides multiple ambidextrous laser activation pad points for instant targeting with a powerful 5mW Green laser. As with all Crimson Trace laser sights, the LS-250 is user-adjustable for windage and elevation. The LS-250 features a Master On/Off Switch for completely powering down the system. This model provides 3 Hours of battery life with four CR2016 Lithium batteries. Palmetto State Armory carries a full line of Crimson Trace Lasers so you can stay on target!