I forgot to say earlier that all the valves and seals for the Crosman 766 are still available as they are the same as in the current Crosman 1377 pistol with the exception of the exhaust valve.

The stem on the 766 exhaust valve is shorter than the stem on the 1377 valve, so the 1377 stem will need to be cut down to work properly.

Hope this helps


All the best Mick