Bolt cam tension

[C Ward]

The ZM guns are a modified DI gas system not a piston gun . May be worth a call to them before monkeying with the gas rings . Pretty sure they are still there by design . Al Zitta is a 3gun shooter and I would expect would be quite helpful .

[CHA-LEE]

I also wanted to add that I did work with Al Zitta (Mr ZM Weapons) on troubleshooting this and he was super helpful.