Sightmark's exciting Mini Shot M-Spec M2 Solar is a dynamic combination of engineering, durability and industry-informed efficiency. Ideal for short- to medium-range engagements, the M2 Solar uses a 3 MOA reticle and a red illuminated laser to acquire targets with speed and precision. With its solar panel, automatic brightness adjustment and extra-long 20,000+ battery life, this is the most convenient, long-lasting and practical reflex sight in the shooting industry today. The M2 mounts on Weaver and Picatinny rails, and it fits pistols with the RMR Footprint. Made from aluminum and with a matte-black finish, the M2 Solar is fully IP67 waterproof and shockproof for drops up to 3ft. Able to operate in temperatures ranging from -22F to 122F, the M2 Solar is one seriously tough optic! When the time comes to acquire your targets with rapidity and accuracy-with a hardy, multi-power option optic-the M2 Solar is available to help you Make Your Mark.