Pro-Arms Aluminum CNC PMM Compensator for SIG AIR P320 M17 / M18 GBB (14mm CCW/ Dark Earth)

Pro-Arms Aluminum CNC PMM Compensator for SIG AIR P320 M17 / M18 GBB (14mm CCW/ Dark Earth) CNC Aluminum Construction 14mm CCW Barrel Thread Suitable For SIG AIR P320 M17/ M18 Series Airsoft Gas Blow Back GBB Pistol