I added two more FWB124Ds.
This is the 2nd one after it came back from Precision Pellet. (The 3rd is on the way there, pic to come) The scope is a vintage Korean Bushnell Sportview 4X32 in Sportsmatch FWB 124/300 specific rings. They have the crossbar that mates to the cross cuts in the receiver. ETA: By the serial #, this is a 1982/83 rifle