r/canadaguns • u/Warm-Alternative-433 • Aug 09 '26

Fix my gun Girsan MC312 double feed?

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Hey, I was wondering if anyone can provide some help with an issue I’m having with my Girsan MC312. See pics for reference but it seems to be double feeding rounds onto the lifter and causes a jam. Does anyone have any recommendations how to fix? Thanks.

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u/TescoValueSoup Aug 10 '26

I'd start by looking for what is chewing up your hulls

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u/Warm-Alternative-433 Aug 10 '26

The shotgun has had some relief cuts for competition shooting and that is a filing of the area where mag tube meets the receiver to load the shells easier and quicker. The gun also has a receiver relief cut to aid with quad loading. That in my opinion is not the cause of why I am getting double feeds onto the lifter

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u/SkSMaN7 Aug 14 '26

If your relief cuts are tearing up the hulls I would start here.