I picked up a nice Rainstorm bullpup the other week for a bit of lockdown garden fun.

Looking for a single shot mag for it but drawn a blank so far. Nobody seems to make one.
I've tried the Carm website as they do a lot of printed trays for rifles like FX but they don't list any Evanix rifles.

I think the mags fit several guns in the Evanix range not just the Rainstorm and its bullpup sibling. Not sure which models though.