this post was submitted on 28 Oct 2025
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I want to build a complete DIY 9mm. I currently have 42crmo 16OD/8.3ID 300mm steel tube and as far as I know it is perfect for fgc-9. Any other recommendations, maybe a handgun?

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[โ€“] Print_a_22 5 points 1 month ago (2 children)

My advice is to print something 22. There are multiple established and beta tested fully diy 22 builds. Almost everything by Kaewon (baby barrett, m4gery, etc), or the SY22, or yh22 both went through betas and are fully printable.

But I'm probably biased. Kits available for all these builds at my username dot com

[โ€“] BuzzingFly 1 points 1 month ago* (last edited 1 month ago)

Thanks. I assume the steel tube (16mm OD/8.3mm ID) i have is oversized for .22 builds, right? Maybe I can get a steel tube locally that is okay to use with .22 ammunition but I am not sure about that, other than 304 and 316 steels are hard to get locally.

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