Mesa bottom metal/Magpul magazine issue

[dbow]

I have a greyboe stock with a Mesa M5 bottom metal in it that is dropping mags after I take a shot. The odd part is it only drops the magazine if there are 2 or less rounds in the mag. When I load up ten rounds I can fire 1-8 without an issue but the last few shots always cause the mag to fall out.

Anyone ever experience a similar issue?

 

[JMGlasgow]

Is the magazine snapping all the way in? Have you tried an AI or Accurate mag?

 

[dbow]

Yes, it does snap all the way in. I can not pull the magazine out by hand once snapped in. I’ve used Magpul magazines as well as a MDT polymer acis style mag that also comes unlatched but does not fall all the way out because it’s a much tighter fit than the Magpul magazines.

 

[JMGlasgow]

Does the latch spring have enough tension to not let the latch move during recoil?

 

[dbow]

The latch seemed like it didn’t provide much tension so I did remove the release and stretched the spring very slightly. Latch is tighter now but I haven’t been able to test if it fixed the issue.

 

[JMGlasgow]

Might ask if Mesa has a spring they can send you. I've seen springs fail. Most likely not heat treated properly.

 

[dbow]

That’s a good idea. I’ll give them a call tomorrow and see that they think.

Thanks for the input. Hopefully it’s just a spring issue. I can’t think of anything else at this point but y’all know a lot more than I do so I thought I would ask.