Empire BT TM-7 Air Transfer Tube Assembly (GG05-UB04)

The Empire BT TM-7 Air Transfer Tube Assembly 17680 is a component of the paintball gun that transfers compressed air from the regulator to the marker's firing mechanism. It is part of the Regulator Air Source Adapter (ASA) located at the bottom of the grip and bolt system, enabling it to fire paintballs. 

Part #17680