All short action k, L and N frame triggers interchange including MIM triggers. Short Action includes all post WWII revolvers except for some made form left over parts shortly after WWII.

They're a bit wider than your .265" serrated tigger but one of the smooth "combat" triggers introduced with the 586 might make you happy. They're forged and case colored which matches your hammer. Usually they drop right in.

Best Regards,
Gil