There are no "set" kits with the Finns from what I've read. The bore guide for one rifle won't fit another type so it has to be type specific unlike the Soviets who all had 91/30's. I already have a bunch of the bore guides for 91/30's so I'll stick one in it. The Finn bore guide for the M39 is a pretty fancy little thing, brass and steel. I don't have an M39 yet so I'm holding off on getting one, they aren't cheap.