For anyone looking for zmag-s 31 mags there are some listed for sale on this forum. I have enough. Good opportunity for some of the guys who don’t have any
I talked to a knowledgeable person who suggested making a mandrel that is an exact match to the Z mag and inserting it into an 11/9 mag to give you a surface to bend the feed lips to so they exactly match the Z mag. Then grind them flat also to match the Z mag. At that point we need to find someone to make the tab/spacer that is welded to the back of the mag.
Why not make a "strobro32" mag well adapter? That's what I did and it works perfectly. I can use the Zytel cobray mags, the regular shockwave zmags, and the PAM2 mags I got form Jerry at Recon Ordnance. His mags are $29.00 each and I think they work the best. It's not that difficult to make, I made one in about a day and a half, from a M11/9 mag well housing and some scrap metal that I had then parkerized it. Must give credit to strobro32 for his genius thinking and ingenuity. Link to a couple of pictures below.
Not that I know of. I asked him about it and he sent me some photos of the one that he made. I made mine for those photos. It does work great and you don't need those now ridiculously expensive 31S zmags.