The LS-250 Laser saddle 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 red laser. As with all Crimson Trace laser sights, the LS-250 is user-adjustable for wind age 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 two provided CR2032 batteries..