Thanks, Punisher.
I bought the carbine from a guy I knew from the Army in a parking lot in Orlando, FL for $125 in 1993. It had been sporterized but it had some spare parts and four magazines with it, three 15's & a 30.
I bought a CMP walnut stock set for it and restored it to military configuration.
It is a six digit Inland with an undated Saginaw barrel. It had been through an arsenal because the rear sight and magazine release had been updated as they are in the photo. It is a great shooter and I am happy with it just as it is.