JR24
Member
Hey all, perhaps you AR experts can give me a place to start.
I just picked up a Stoner .300 BLK upper for my M&P lower, gun shoots great so far... BUT 4 of my 5 AR stoner magazines do not latch in well.
One of them runs fine, drops free. (This may be the original mag that came with the rifle)
The other 4 need to be inserted forcefully, even with an empty mag and open bolt. And once I get them latched, I gotta rip them out.
All 5 work fine with my .223 M&P upper.
My original M&P is from around 2008 and had similar problems with magpul mags back then, so I suspect the issue may be with the magwell, but I'm not sure where to start.
Is there a brand of mag to try for problem magwells? Is this probably a lower issue and I'd be best picking up a stripped lower and starting over?
Thanks for any help.
I just picked up a Stoner .300 BLK upper for my M&P lower, gun shoots great so far... BUT 4 of my 5 AR stoner magazines do not latch in well.
One of them runs fine, drops free. (This may be the original mag that came with the rifle)
The other 4 need to be inserted forcefully, even with an empty mag and open bolt. And once I get them latched, I gotta rip them out.
All 5 work fine with my .223 M&P upper.
My original M&P is from around 2008 and had similar problems with magpul mags back then, so I suspect the issue may be with the magwell, but I'm not sure where to start.
Is there a brand of mag to try for problem magwells? Is this probably a lower issue and I'd be best picking up a stripped lower and starting over?
Thanks for any help.