May 2, 2026
Description
This adds length and purchase to the magazine, does not add capacity. Fits factory mark iv magazines, uses factory spring and pin. Made it to fit only the standard mark iv NOT 22/45 mags.
I print with the front of the mag on the build plate like in the print profile. I like numbering my mags so I left that in the print profile, easy to remove if you dont want the two color thing… I've used PETG with good success. I am playing around with settings to get the cleanest final product, it seems brim and supports… maybe, idk? Finally, I sized these to fit tighter than the factory base plates, not so tight you can't get them in but they should take any slop out.
If you come up with some settings that turn out feel free to share in comments or upload a build profile.
Enjoy, Boost, like, happy shooting!
License:
Standard Digital File License