The Compact Green laser is an ultra bright and powerful green laser in a much smaller package than was available previously. The Weaver style mount will fit virtually any Weaver and Picatinny rails making it possible to fit onto a wide variety of firearms. The green laser has precise windage and elevation adjustments for a quick powerful and precise laser aiming devise. The supplied remote pressure switch it gives you the flexibility to mount the laser anywhere on your firearm and be able to activate the laser when you want to. It is manufactured from aircraft quality anodized aluminum and is able to take a pounding.