This is a magazine for the STGW-57 / PE57 / Sig 510 Rifle. I'm releasing this as an open beta. Not yet tested, but everything seems to fit and feed fine. It's not exactly a milled aluminum magazine. But it's a lot easier to pay $3 for a magazine's worth of filament than $100-$250. It is noteworthy that I felt like the feed lips were too flimsy as a double-feed. So, I changed it to double-stack, single-feed. This should be fine, considering the guns are also designed to run LMG-25 magazines, which are double-stack, single-feed. I don't have any leads on a magazine spring. I tested with a G3 spring, and it seems to work fine. The short mag should hold 10 rounds. The long one should be standard capacity, or perhaps a couple of rounds less. All files are included for adjustment or remixing. v1.1 has a redesign for stronger baseplate attachment.

I recommend 99–100% infill, 4+ walls, and PLA Pro or better. I auto-rotated all parts into optimal print orientation.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

LBRY Tags: 3d2a; 3dprinting; guncad; guns; gunsmithing