MP5 Magazine adapter for M4

thingiverse

Here's a project I finished before dropping it for something else. It works well, the lever needs a bit of sanding to rotate easily, but nothing impossible (I designed it to be a tight fit, so it(s not a surprise). I managed to make it worked easily on my cheap M4 with absolutely no modification( you put it and drop it like a stadard M4 magazine), with a minimum of post printing work. Have fun ! You will need a 3.5mm pin for the lever, and a 4mm spring too. These springs are commonly found in 4 colours pens !