[/quote]All CSMC o/u's are Rizzini clones except the A10, some odd target model, and their $$ Boss copy.
JR[/quote]

Action yes, but the mid/side rib look kind of cheesy to me (I have one) and not like a B Rizzini.
I've described them in a couple of other posts. They are flat sided, one piece I-Beam-ish looking and not as pretty as B guns and other Italian or Japanese O/Us, IMHO.
They hide them pretty well in the pictures they provide on their website and GI. Anyway, heck, they may be better than the usual concave rib. I know little of how the mid ribs are attached on any O/U, except they are soldered at the muzzle and monoblocked at the breach end.

Last edited by MrCrockett; 01/16/22 05:45 PM.