UMP adapter to M4 mag
pinshape
Hi, thanks to this adapter you can mount : M4 1200RD ELECTRIC DRUM MAGAZINE or any other M4 mag !!! :) To secure the upper part I used a spring from a lighter. Flat printing recommended! Infill 30% or over. I printed the main part flat with tree supports . I am using the Ender 3 printer but it is not on the printer list of this website Because I do not have closed chamber I was printed all PLA The obj. files are the same as stl.
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