Lambda GHMG-9 owners

[DietCombOver]

Any fellow Lambda GHMG-9 owners had an Issue with their RIF not playing well with VFC mags? Whenever I insert VFC mag without it being already cocked and primed to go the protruding valve knocker seems to apply too much pressure slowly releasing gas from knocker valve, If I proceed to cock the RIF and try to fire it the knocker hammer seems to misalign itself orientating up by about 30 to 45 degrees failing to make contact with the valve.
 

It looks the VFC mags have their knocker value slightly protruding more than the first party magazine which came with the RIF.
 

What seems like a good fix? I only ideas I've come up with are tightening the valves more into the mags, so they don't protrude as much or filling down the valve hammer a little. Any other suggestions?

[MistakenMexican]

I haven’t had the issue on the GHM9 but it’s common on glocks. Typically due to over travel on the hammer blocking the valve.

 

Not sure about the GHM9. Mine doesn’t do it, but I run Marui spec mags.

I assume the hammer has some way of rotating up and out of the way when a magazine has been inserted, so I’d look at whether the knocker has any upwards movement.

 

if that’s all fine, You could try different output valves?

 

[MistakenMexican]

so got the GHM9 MP9 lower and a few mags.

 

the LD mags are crazy light. I reckon they’re as light if not lighter than my prowin glock mags.

 

it feels like they’ve improved the trigger mechanism and also the bolt travel. It’s generally an improvement.

 

i now have two lowers and a G series bolt that I can keep and interchange 👌🏽