m4ss (gel blaster) battery lead protector

thingiverse

This spacer prevents cables in the M4ss Gel Blaster from getting pinched by the buffer tube when screwed in too far. The long tab version is designed for metal spring retainers (aftermarket upgrades). The short tab version fits the stock spring retainer perfectly. It requires a snug fit into the shell, but that's intentional to prevent rattling around. To print it smoothly, flip it so the tab faces up in the slicer. This makes printing easier, especially with Fusion 360, which I'm still mastering. Feel free to suggest modifications for other spring retainers in the comments if you need a custom fit.