The FLASH Kit includes a SureStrike™ Airsoft CCW adapter and the The SureStrike™ Vibration cartridge. The LA FLASH is a high-end CNC machined flash suppressor adapter that replaces the stock flash guard on any “off the shelf” Airsoft rifles. The SureStrike™ Vibration cartridge is a 9mm cartridge that activates by the Vibration of the Airsoft and not by the firing pin like the conventional SureStrike™laser cartridge. * IR laser is recommended for use with recoil.