Mounted on gun but never used. You can find out which adapter you need from crimson trace or you tube. The item "Crimson Trace CMR-206 Rail Master Green Laser Sight Black" is in sale since Thursday, August 23, 2018.This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Lights & Lasers". The seller is "szemonski" and is located in Cape Coral, Florida. This item can be shipped to United States.