[BipolarBob]

I prefer metal magazines myself. With that said, DDD has been on fire.

[taxcontrol]

It is possible to print magazines and then use the print out in lost wax casting, though that does take more equipment and time. With a larger investment in the 3d printer (slm printer), it is possible to print final ready to use aluminium or steel magazines.

[umgud]

I prefer metal magazines myself.

Metal hi-cap mags are incredibly easy to make.