... Sporterized, mostly, No.4 Rifles;Polished and reblued,new forend and stock with a raised comb. Wood was high gloss, new fore sight (ramped) added, and the barrel cut-back and re-crowned. Sling swivels added, all in all, as I recall, they did a very nice conversion and I'd assume that the internals and head space was adjusted as needed. 'Not sure on the rear sight, but I THINK it was just the "L" shaped flip-up version. The blue/polish was really nice ! Never owned one, but there were lots of them around in the late 60s early 70s! ..... David K.