The 80% that I did was already threaded for the buffer tube, after anodizing, the buffer tube threaded in with no trouble.
I would note that my anodizing is not as good as the genuine mil spec anodizing, but it's close. I did the acid bath anodizing with a proper aluminum alloy anode and black anodizing dye, it's as good of an anodize job as you can get without a cooled anodizing system.
Mine was not done to save money, which I did not, but was done to have a custom lower.
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NRA Lifetime Member Since 1999
"I ask, sir, what is the militia? It is the whole people except for a few public officials." George Mason
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