The Pro Arms high flow valve is designed to increase the gas flow from your gas tank to the barrel chambers for increased velocity and better performance in cold weather. The outer valve is produced by CNC machining, and the center pin is made from steel. If you own a TM M870, the high flow valve will make your great shotgun even better!
- CNC Machined parts of steel and aluminum
- Increase your gas air flow for better performance
- Made for Tokyo Marui M870 Gas Shotguns