I bought mine through a local dealer back in the late 80s. He ordered it for me from S.O.G.. It was sold as "all matching", but to convert to .30-'06 (Kal 7.62mm) the barrel was replaced by a new one, and with it the rear sight base, the balance all matches. The magazine box was lengthened and the receiver notched for the longer .30-'06 cartridge. I have turned down $750.00 for this like new rifle.