Picked up a FWB 124 in trade a couple weeks ago. It was not firing and the owner wasn’t mechanically inclined. So I traded a couple of my operable air rifles for it. The exterior was in very nice condition, just a few dings in stock. Sure enough the seal was toast. Spring was still in really good shape. Rebuilt it yesterday. Mollied the piston at both ends. Vortek grease on the spring and reassembled. Attached are the first two groups after sight in with the little 4x15 blue ribbon scope that came with it (4x is not my preference). Was very impressed with 5 shot groups at 20 yards with FTT. Very nice, light, easy to cock shooter. The second group was 1/4” at 20 yards