Urutau, parts to machine?

Originally posted by u/Solid-Translator8097 at 2025-06-13T17:46:37Z

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Getting ready to assemble my urutau, but now considering CNCing several of the higher load parts out of aluminum. I'm thinking of several of the internals (safety bar) for smoother operations and then possibly the barrel retainer and cading a remixed upper receiver so the part that receives the barrel is aluminum as well. Anyone else tried something similar or have feedback on which parts will be best served by this?