Halo Magnum Updated Magazine
thingiverse
The magazine now uses a spring from a pen that I picked up at a bank. I remember getting the pen, but I've forgotten the original dimensions of the spring. If I can get my hands on another identical pen, I'll be able to measure the spring accurately. I've already reduced the dimensions of the magazine by 5% as recommended in the comments on the original file. However, the magazine fits a bit loosely so you might want to scale it up if you prefer a snugger fit.
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