- Joined
- Aug 28, 2013
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My M&P-10 will not lock open on an empty magazine. I have mags from Magpul, DPMS, ASC, and Brownells, and it the same with all of them. If I manually press in on the latch portion, I can (sometimes) get it to catch, but it is a weak hold and it dislodges very easily of it catches at all. Any ideas?