Benelli M4 stock collapsing during fire? Anyone else have this issue

SudburyShooter

SudburyShooter

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I have a Benelli M4 and when I shoot rapidly the stock always seems to start to roll to the right and eventually slides up on me. I have it pulled back and fully locked at max LOP for the GRS. Even 5-6 rounds of light load #8 will start the problem. I can only imagine that my face is maybe pushing the release button, but I'm not anywhere near it. I'm pursuing a Urbino fixed stock atm but would rather keep the adjustable as it should work. I hate to say it but I'm almost convinced I'm doing something wrong.

I haven't found one post to coincide with my little issue.
 
Also considered making it a fixed stock by pinning it but don't really want to be drilling the release button and cotter pinning. Seems pretty Mickey Mouse for a gun I've held on a pedestal my whole gun career.
 
I had an issue with another stock doing a similar thing and it turns out the spring for the release button wasn't strong enough.
With a spring swap it alleviated the issue.
If Benelli cant provide a new spring look at shimming it to create a higher force.
 
Are you a lefty?

I am, my collapsible stock always unlocked while shooting. I oordered an OEM Factory Benelli M4 Solid Pistol Grip stock off Brownells ($200 USD) and was awesome. Looks much better also....the original configuration prior to recently.
 
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