Very nice. Had a SA48 with 18" barrel way back when. Had a railed ARMS (I think) top cover that allowed the factory rear to be used. Mounted a 4x Leupold on it. It shot very well.
Still have my Gerber MKII that I got in 1976 with the grey handle, leather sheath and steel in a pocket. Chipped about 1/4" off the tip at the Pickle Meadow MWTC around 1978. Sent it back to Gerber where they reground the profile so you can't tell the difference other than it's shorter.
Makes me want anothe FN. Thanks for the pics.