I have a 1947 Ranger 102.25 (aka Stevens 520A) 12 ga shotgun that I purchased as a basket case. It is missing the buttstock. After thoroughly cleaning the gun I noticed that when the buttstock is not installed and the safety is moved to the rearward position, the safety lever falls out of...

I have a Stevens 520a (well, it's a Ranger 102.25, aka 520a) that I bought as a basket case with the idea of restoring it for fun. It was made around 1947. It's missing the butt stock but is otherwise in decent shape. My question concerns the trigger assembly. There doesn't seem to be a...