Laser Ammo Adapter 12 Gauge Shotgun. These Laser Trainers made by Laser Ammo allow you to use 9mm SureStrike cartridges with your 12ga shotgun. However please note that the 9mm SureStrike cartridge is NOT included with this item and you must purchase it separately. This Laser Ammo SureStrike Shotgun Training Adapter is incredibly easy to install and does not require tools for installation. Law enforcement hunters and hobbyists will love this Laser Ammo 12ga Shotgun Adapter that creates a significantly safer way to practice your shot. Specifications for Laser Ammo SureStrike Adapter 9mm to 12 Gauge Shot Gun: Manufacturer: Laser Ammo Caliber: 12 Gauge Gun Type: Shotgun Quantity: 1 Features of Laser Ammo SureStrike Adapter 9mm to 12 Gauge Shot Gun: Converts your 9mm SureStrike to work with your 12g shotgun Easy to install and no tools required The shotgun adapter must be used with the 9mm SureStrike Laser Cartridge. The 9mm cartridge is sold separately it is not included with this 12 Gauge adapter. Package Contents: Laser Ammo 20 Gauge Shotgun SureStrike 9mm Adapter 12 Gauge Shotgun Adapter Features/Specifications: convert your 9mm SureStrike to 12G caliber to use with your shot gun. Included Accessories: 12 Gauge Shotgun Adapter