WE Airsoft G17 Part No. G-68 Inhaust Valve

The WE G17 Part No. G-68 Inhaust Valve is specifically developed for WE's G17 and refers to the GBB (Gas BlowBack) magazine.

The inhaust valve allows you to fill the magazine with gas. We also recommend always leaving a little gas in the magazine so that the silicone additive in the gas will keep the rubbers of these valves wet.