The sale rack at my club had a sporterized 7.7 for sale last year. This one had a Mauser-style wing safety, an aftermarket receiver sight, and a decent walnut stock.
My local gunsmith said a lot of the 7.7s were rechambered to .30-06 by US armorers and issued to the South Koreans. Accuracy wasn't great with .308 bullets, but this was a way to arm the ROKs quickly with rifles that would use US surplus ammo. The ROKs got Garands etc when we went to .308s and .223s.
