NcSTAR NC Star AQPTLMG, Green Laser Sight, Ultra Compact for Pistol with Quick Release Mount Compact Green Laser with Quick Release Weaver/Picatinny type Mount Adjustable for Windage & Elevation Ambidextrous Sliding On/Off Switch Includes Adjustment Tools Class IIIA Laser Product, 5mW power output Alluminum Construction Quick Release System Attaches to Most Weaver Style/Picatinny Rails 532nm Green Laser Beam &lt;5mw Fully Adjustable Laser for Windage and Elevation Powered by 1 CR2w Lithium Battery