I have a early production of the SAKO L57. Not to be confused with the L579 which the original model was changed to after a few years of production. I have the .308 model. I am looking for the swivel hooks that attach the sling to the stock. I have the metal threaded metal inserts already inside the stock however I cannot find the swivel hooks. I have searched and contacted many shops and manufactures that deal in obsolete and rare gun parts and no one seems to even have record of having L57 parts in stock. I understand that there were only a little more than 10,000 made but i didn't think it would be this hard to find parts for them. any help finding this part would be greatly appreciated.