this post was submitted on 07 Jan 2026
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FOSSCAD

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DB22 question (fosscad.io)
submitted 3 months ago by Echo419fohammer@fosscad.io to c/fosscad@lemmy.ml
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What non printed parts do I need to complete this build I know I need a cmmg 22 lr conversion BCG and protobarrol but is the max upper required for this build ??

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[–] wildecoupe@forum.guncadindex.com 2 points 3 months ago

Also, you'll need the FCG reinforcement plates. I couldn't find any STLs for them as these being 22lr, we don't need titanium or stainless, so printed ones are fine. I had to convert the DXG files to a sketch in Solidworks and create the STL from that.