Two months ago my gunsmith showed me two buttstocks he'd gotten in to replace a bad one on a customer's Marlin.
Both replacements were equally bad.
Last week my bro-in-law looked at two different stores for a new 336. Couldn't find one he thought acceptable. He's still looking.
Make no assumptions & CHECK ONE OUT BEFORE BUYING IT.
As I said- they're not ALL bad, but...

Denis