Beeman 1357 mags can't be bought?

[avator]

To be honest.. my Beeman mags fit much tighter than my Marauder style mags.

[BC81]

Idk if CARM makes any for these guns, but I just want to chime in and say IF he does, you won't be disappointed. I have 4 of them now for my Kral jumbo. 2 in .22, 1 in .25, and one in .177
They work amazing and are all around better than the stock mags(which aren't bad either). He also color coded them for me when I asked lol.

[jsk68]

After inspection I noticed my Umarex fusion 2 breech will work with left or right side loading mags, the Beeman looks the same from what I can tell from pics. The Umarex mags are exactly 9/16 thick, maybe they will work?