Nickle 586 4” no dash product code

[Model52guy]

Picked up a nice nickle 586 ,4” ,no dash at the pawn shop about a month ago. SN is ABF31XX. Roy says it shipped in May 1983. It has target stocks but not the trigger or hammer. Looking at the SCSW I cannot find what the product code would be. Any help would be appreciated.
Thanks,
George