I picked up this rusty Crosman V-350 BB gun a while back. It functions but is in rough shape.
The barrel is extremely rusty.
Two screws fore and aft remove the stock from the action.
Hmmm, a ball bearing. Crosman doesn’t have an exploded diagram or manual on their site but there are instructions here in the Crosman Service manual. (Very handy PDF!)
Another shot of the ball bearing and spring.
A band clamp is used as the front stock mount.
Knurled nut retains the barrel. It is called the "Tube Bearing" as the barrel slides into it.
A post (locating stud) for the rear stock screw also retains the spring. This is a spring piston gun, although a somewhat unusual one.
I think the rear sight is misaligned.Again you can see the rust.
Put it in the spring compressor.
Knocked the pin out.
Spring and cap. (Tube Plug and Stop Assembly).
The piston assembly, spring and cap.
It appears to be one part, unlike the drawing in the service manual.
Unscrewed the barrel retaining nut/bearing.
Unscrewing the hollow screw that guides the barrel.
The hollow guide screw.
A small ball bearing and spring are revealed in another hole when the barrel is rotated 90 degrees.
A spacer sleeve around the barrel.
The seal for the barrel. "Barrel cap".
Barrel sleeve/bearing and spacer and barrel.
The seal assembly has a pop valve.I’m nut sure why it’s so complex and to be frank I don’t think I will understand the entire mechanism until I have cleaned it all up and reassembled it.
The barrel cap is a somewhat complex part.
Inside. More to come…