Magdumping a 3D Printed MP5-10/40 Build


Got the 10/40 working with the flangless upper. Still need to square away the bolt hold open, but getting closer.

I’m Ivan – a fella who works to document and record the history and technical background of the development of homemade firearms.

You can support me directly on Utreon –

You may know me from my work with ARES Research to help author reports about this topic – this channel shows the “behind the scenes” testing that goes into building the body of knowledge requied.

Regardless of if you are here for the research, technology, or just to see some funky looking guns tested, I hope you enjoy.

**All firearms shown and tested are done so in full compliance will all applicable laws. All test firing and use of firearms is conducted on a properly zoned, legally operated firing range.**

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What do you think?

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ScARpion mags are my favorite 22lr magazine. All 22lr PCC and rifles should use

So as we know we may find out brace=sbr what about mag holder?? Does that = stock or brace?