CNC TDC hop-up chamber for TAC-41 - GBB type

Quality "GBB" Hop-up chamber (only compatible with other GBB parts for this rifle) made on CNC machines intended for Silverback TAC-41 weapons.

This is a complete chamber with all necessary parts, barrel lock and hop-up bucking.

TDC stands for "Top Dead Center". In airsoft, this refers to a device that is able to press continuously (usually by means of an adjusting screw) on top of the Hop-Up chamber arm. To form its upper limit (TDC) without unwanted will. In addition, the control is more sensitive, smoother and usually with a larger range than with conventional lever control.