From IvanPrintsGuns:
21:08 – “For a 30 to 60 round use cases, the Biden’s Bane upper is a very attractive option for a build.”. His initial thoughts. Keep in mind he was using PLA and firing one shot after another and really heating up the gun in his test.
It’s only a matter of time before 3d printed uppers will be just as reliable as 3d printed lowers.
Thoughts?
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