I have a new unfired Colt 6700 20" 1/9 twist A3 upper with matching carry handle. It is from a Blue Label gun with a small front pin, flash hider, and no bayo lug. There are no markings on the upper, however, I can assure you that I bought this as a complete, unfired, Colt rifle. Does not come with charging handle, bolt carrier, or bolt assembly. I will sell this upper for SPF plus shipping obo.
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Thanks for looking, Mark