I have a set of 30" from a 1974 vintage trap special. They have been fitted with Briley Thinwall choke tubes and there are 5 choke tubes with the barrel. Cyl, SKT1, IC, Mod, I MOD. Bore and lockup are good but there is a small ding on the last section ov the vent rib at the breech. I was going to try and raise it but I never saw it while shooting so I figured why take a chance on causing real harm. If you are interested I will take $650 total.
--- Chip King ---