I'm waking up this thread because I just finished a project. Pictured is a Mossberg 42M-C. I acquired it in somewhat rough shape ; light pitting , badly bunged up screws , missing butt plate. Bronze wool , Flitz and oil freshened up the steel. I used a variety of small files and cold blue to clean up the screws. I gave up trying to find a decent proper butt plate , opting for making a mahogany piece that extended the short-ish pull. Cleaned up rather nicely , I think. Yesterday I took the 42 to the range for a function shakedown. The rear peep sight and front hood act as a bullseye kind of a sight , really focuses on a target. My range was only 11 yards - really short for a rifle - but for a preliminary sighting in and function test I was quite pleased. The target represents 21 rounds (3x7) and a bit of rear sight adjustment. Peep sight , bolt action and Mannlicher stock - What's to not like?