Just bought a 48 that looked pretty good. No chrony, but it seemed to fire OK. Haven't had one of these in so long I can't remember if the breech seal is visible, as on a FWB 300, or hidden deeper in the hole. Need a muzzle weight also. Shroud is loose.

........you can see it if you look back with the gun cocked.

You can tighten the shroud by pushing the front sight assembly rearward and re-tightening the retaining screws. ( You may have to loosen the screws first.)

K