Modified off of https://odysee.com/@durendalresearch:d/KeltecCMRPMRmag:7 per their terms and like wise feel free to modify and give credit back to the creators.
Get the other mag parts off @durendalresearch:d 's original post as well as import notes about a spring and mag follower like using a pair from a existing mags.
10 Round DMB Glock Magazine for Menendez Baseplates
Schmeisser 60 round Ar Mag + 20 baseplate
Kalashnikov prints 7.62x39 izmash 30 round magazine