Pro-Arms Steel Slide Catch for VFC / SIG AIR P320 M17 GBB Pistol (Dark Earth) Action Army The amount of gas used

The amount of gas used per shot by the Negative Pressure Nozzle Set is instead regulated by an independent valve inside the nozzle without the need for contact between a floating valve's plunger and the BB

Tension adjustment screw

Head Diameter: 25

This rail will also give you the SPR look

Using HK's unique internal mechanical recoil reduction system reduces the recoil forces imparted to the weapon and shooter by as much as 30%

Pro-Arms Steel Slide Catch for VFC / SIG AIR P320 M17 GBB Pistol (Dark Earth) Action Army The amount of gas usedPro Arms Steel Slide Catch for VFC SIG AIR P320 M17 GBB Pistol (Dark Earth) Steel Construction Design For Upgrade the Original Parts More Durable Suitable For SIG Air P320 M17 GBB Pistol