Most of the stock makers that did that are either retired or no longer with us. Macon Gunstocks will duplicate a stock if you can send pattern stock. They may even have a M50 pattern stock they could add the high comb??

https://www.macongunstocks.com/services.html

wonder what coin that would run.

most makers tell me they cant guarantee the condition of the blank you give them to copy one, because it has to be rolled on and jigged in place. I never pursued a replacement stock because of that....but, with that said, this one is toast. it might be worth it. ill let you know what I hear.
in the meantime...if you see or know of a pigeon trap mc wood set anywhere else....lmk!

im going to let go my 20ga m50 skeet collection as one lot.
field, skeet, pigeon, pigeon p4 engraved 3 bbl set.
anyone interested, lmk.