why don't you just make your own feed tower? rather then hoping and wishing someone else will make one because you want one............... there is a old saying, “Wish in one hand, $hit in the other, see which one fills up first.”
making it isn't so insurmountable, you just need to cut down the mag and have 2 tabs for the screw to go into the drum.
another way to do it, which is what I done to make a SLR-106 5.56 AK feed tower from a plastic TAPCO GALIL/GOLINI mag ; take a BETA 9mm feed tower....doesn't matter which feed tower it is....cut the top portion off then take and cut the bottom of the M11, line up the cut 2 pieces, I use a block of wood the same inside dimensions of the mag and feed tower to precisely line up the 2 pieces.......then I cut 2 alumium pieces to be brackets, and epoxy the bejesus to make the two pieces into one.
now that I told you how to make one, you and anybody that's reading this thread that has a MAX, can make one for themselves......if you can walk and chew bubble gum at the same time, you'll be able to make it
you're welcome

glad to be of help
the first 30 seconds of this video will show you what I did to make a 5.56mm AK feed tower..... I made this tower more then 5 years ago, and it still going strong, no sign that it is failing