Was at the pawn shop today and picked up a new saw could not figure out what it was as all the badges are gone but pretty sure it is a MS460. Piston looks good have not done a compression check yet needs a new bar and chain a new muffler and replace one long an one short bolt. The chain cover is busted and it is missing one dog so there are a few parts to get but seems to run well. Looks like the chain rubbed a hole in the case below the drive sprocket. Any advice on what replacement muffler or where to find the bolts?