I wish I knew the model number of the Crosman my buddy had when we were growing up. He had to out do me and my Crosman American Classic in 177 by buying a Crosman pump in 22 cal, CO2 powered. He’s planning on bringing that to me this summer, for me to repair it and re seal, but I don’t know the model number/type. He’s too lazy to try and find the gun in his attic.