I've got an older Crosman 1377 pellet pistol, from the early 80's. From what I can tell it is a "phase 1" version, because it has a steel receiver and chamber cover. Plus, it has a rear pull to cock device. If I am wrong, please let me know.
It finally needs a little bit of new parts. It has no resistance when pumping it. What parts are needed to bring it back to life and how difficult is it? I can imagine that I need an "O" ring set and possibly a set of cups. Can someone tell me if all 13XX use the same sets of parts or do each phase/version use different.
I've looked some and it seems that each model is very specific.
Thanks in adavnce.