MP5 Magazine adapter for M4

thingiverse

I recently completed a project that I had to put on hold in favor of something else. Although it's functional, the lever does require some light sanding to move smoothly, but this was anticipated since I intentionally made it a tight fit. I successfully managed to get it working seamlessly with my budget-friendly M4 without making any modifications, aside from attaching it like a standard magazine and doing a minimal amount of post-printing work. Enjoy! This project requires a 3.5mm pin for the lever and a 4mm spring. These springs can often be found in four-colored pens.