Joined
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10,614 Posts
I did one from EP Armory. I bought the polymer lower, jig and milling bits from EP. I used my drill press. Went slow, watched a YouTube on how to drill and mill it. Turned out okay, put a cheap PTAC upper on it and it shot fine. Kept it in the truck for awhile. My son claimed it and it's in his safe now. It was pretty easy and a good experience but I wouldn't do it again. Not since lowers are $40 at Aim Surplus which is just a couple miles from me.