Since none of those on the list are manufacturers, and they are all out of business, the list is out dated. The only
manufacturer I see on the list is (Uberti) who still makes this model. I went to the n-ssa.org website to double check, and if they allow the F.lli Pietta 1858 Remington, I don't see why they wouldn't allow the Pietta 1860 Colt.