Replacement Regulator Bonnet Single O-Ring

HK Army Tank Regulator Bonnet (Single O-Ring)

This is a standard replacement bonnet for HK Army tanks.  This is the top part of a 2 piece regulator that is found on the top of the HK Army tank.  This bonnet uses universal fill adapter threads and will fit most Airsoft and Paintball Regulators on the market that utilize UFA threading.