This adapter allows you to expand your 9mm Kit so you can train with your favorite 45 Long Colt firearm. Use this adapter sleeve to convert your 9mm SureStrike(TM) into a 45 LC laser cartridge. Just slide a 9mm SureStrike(TM) laser cartridge into the adapter and you are ready to go! No tools needed! Note: you do not need to use a safety pipe and nut (safety system) when using a SureStrike(TM) cartridge and the 45 LC adapter sleeve.