OK, I got some M3 mags in today and couldn't wait. Here is what I've done.
Todd, it would be great if you could provide feedback on if this is a reasonable approach, and what you consider best practice.
Others, please post pictures of your approach as well.
MODIFICATIONS
It appeared that you could take two approaches. You could either shave off a bit off the overall stop and leave it flush with the spine of the mag or you could try to just shave the edges of it off so it fits inside of the magwell cutout (see DSC_0532).
I attempted the latter. I used a chop saw with a fine woodworking blade. It does not appear you need to go all the way down to the spine of the mag (see DSC_0536).
I figured this way you still get the benefit of the anti-over-insertion feature.
I didn't work too hard at this. It may be possible to cut less material, or do it a different way. But just eyeballing it all ten of my M3s insert cleanly and fall free cleanly from my FFL.
Note I haven't been to the range with them yet.
Thanks.
-john
Picture descriptions:
DSC_0528.JPG Unmodified M3 partially inserted.
DSC_0532.JPG Magwell detail.
DSC_0536.JPG Modification detail.
DSC_0537.JPG Modified M3 inserted.
DSC_0542.JPG L-R: GI mag, M2 mag, modified M3 mag.
Bookmarks