Don’t know much about the Crosman Model 120, all I do know is I got off of EBay for a very cheap offer that was accepted after 3 weeks.
So far I have replaced the pump lever assembly arm, resealed and cleaned up the rust, repainted it and redid the wood. I have the rear sight, apprature and a new stronger hammer spring ordered and should have them later this week. After the reseal I tested velocity and it averages 610 fps with 14.3 Crosman domed pellets. Here are the before and after pictures:
So far I have replaced the pump lever assembly arm, resealed and cleaned up the rust, repainted it and redid the wood. I have the rear sight, apprature and a new stronger hammer spring ordered and should have them later this week. After the reseal I tested velocity and it averages 610 fps with 14.3 Crosman domed pellets. Here are the before and after pictures: