Hey OP since you've got a line on these rad Shield Supremes, I've got a question for you:
You reckon there's enough meat on the sides of the receiver to machine the grooves for an MRX magazine to fit? That would be really cool, and not even sus because it is a manual action after all.
The magwell is actually wide enough to accommodate the MRX mags without any receiver modification. Although they do not fully insert due to two the wider parts of the mag hitting the internal rail.
It surprisingly still feeds when pushing up mag. This means if the rails were modified it should work just fine.
That's awesome! is it the upper part by the feed lips that fouls, or just the ribs? If the latter, a bit of trimming of the ribs could make it work and it still wouldn't fit in an AR.
I reckon it aught not to be an issue as long as it definitely still can't possibly chamber in any semis. whittling the tops down by like 3mm wouldn't change that, or really be noticeable. Considering it's going into a manual action firearm too, you'd be modifying one manual action magazine for an other manual action rifle so it's not even in the "ummm well actually officer..." territory like machined out semi receivers.
Option 2 is making a super thick, fat boy mag body that fits exactly into the well of the Supreme, uses STANAG followers and springs, but is too girthy to fit other STANAG mag wells. Shield could make it and sell it as a Supreme specific, Canada legal 20-30rd mag.
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u/escv_69420 5d ago
Hey OP since you've got a line on these rad Shield Supremes, I've got a question for you:
You reckon there's enough meat on the sides of the receiver to machine the grooves for an MRX magazine to fit? That would be really cool, and not even sus because it is a manual action after all.