VSR10 TDC CNC Hop Up Set (One piece CNC hop up chamber+TDC adjusting kit)

The one-piece CNC HopUp chamber from the manufacturer TTI Airsoft uses the TDC system to adjust the hop-up effect. It is made of durable material, which ensures long life and reliability.

TDC is an abbreviation for the "Top Dead Center". A term that is used mainly in connection with internal combustion engines and expresses the position when the piston in the cylinder is in its maximum (highest) position. In airsoft, this refers to a device that is able to smoothly (usually with the help of a set screw) push the Hop-Up chamber arm from above. Thus creating its upper limit (TDC) without unwanted backlash. In addition, the regulation is more sensitive, smoother and usually with a larger range than with classic lever regulation.

TDC is not primarily supported by gun manufacturers and cannot just be attached and bolted on. During installation, the barrel must be partially disassembled and a hole drilled into the outer barrel exactly from above. This set will help you with this step. In the package you will find a drill bit, a metal cylinder for pre-measuring the distance for the holes and all the necessary screws and parts for assembly.