Vism Compact Pistol Green Laser W/Keymod Rail Black. These Green Laser Sights developed by VISM are small enough to fit within a pocket ensuring you can use it while on the go. This Vism Compact Picatinny Green Laser Pistol is fully adjustable for windage and elevation and has an on/off switch for instant activation. Upgrade your weapon with a Vism Compact Pistol Mountable Green Laser w/ KeyMod Rail to sight your next target with ease. Specifications for Vism Compact Pistol Green Laser W/Keymod Rail: Manufacturer: VISM Color: Black Beam Color: Green Attachment Type: Weaver Picatinny Battery Type: CR1/3N Battery Quantity: 2 Length: 2 in Width: 1.1 in Fabric/Material: Aluminum Mount Type: Weaver Package Contents: Vism Compact Pistol Green Laser W/Keymod Rail Vism VAPRLSGKM: Compact Pistol Green Laser W/Keymod Rail Black