I have a 1976 SACO import HK91 with the polygonal barrel, one of less than 300 known to exist. This has the same barrel type used later by the PSG1, MSG90, and SR9. It is in 80-85%, as it needs refinishing. It was refinished before I bought it, and the finishing has worn off in spots. It comes with a factory bipod and 1-20rd magazine. I had/have a box of perhaps $600 worth of parts and accessories, but it disappeared while moving and I have not found it yet. If I am to find it, the buyer would get first choice on the parts.
I am interested in selling it foremost, but will consider trading for a M21 or M21 clone, preferrably with the ART scope and USMC camo stock, a Grendel R31 with cash, or a transferrable M11.
I have taken quite a few pictures to portray my description to the best of my knowledge.
Shipping discussed upon purchase.