/u/BrownsBrush's posts in /r/fosscad
I have a 20" barrel and a dream... Add another project to the backlog. I've wanted to design my own upper/lower for a while now for an AR9/MP5 built, but bought a factory MP5 mag lower. Now I have an excuse to make a paddle release lower. Quick mock up as a proof of concept for scale.
79 upvotes
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70 upvotes
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Do I chop Steve's heatshield up to fit on my print bed and save myself $25, or just buy a heatshield?
43 upvotes
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41 upvotes
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28 upvotes
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