I have a few A4 clone projects so I like finding cheap bolts with decently turned-down handles that I can complete to my taste. I purchased a bolt assembly at a gunshow from a box of parts at a cheap price and assumed it was a good looking gunsmith job. My issue is that the handle contours and cuts look perfect. I saw a U under the bolt handle so figured it's nonoriginal. But I cant find any info for "U" marked bolts.

Is it possibly a poorly struck Remington "R" and not a "U"??







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