Your tom is probably a Narr. x Royal palm. His tertial feathers look palm and the presence of a solid black primary is a good indicator of palm genes. Hes not a pure Narragansett but still a nice bird. I have one that is similar, but he's in a pen with spare gobblers and his plumage right now is far from ideal. Otherwise I'd post a photo.
On a side note, most Narragansetts start out their new plumage a light steely grey, edged with black, but UV rays from the sun will bleach the grey to almost white. The more sun the birds are exposed to, the quicker the bleaching effect.