For decades, shooters of the Crosman Mark I and II series pistols have become accustomed to the misconception of a “two stage cocking” of the hammer.
While there can be two distinct positions at which the hammer is held back in a “cocked” position, the trigger was never intended to operate that way.
The “power adjust” screw on the hammer spring was meant to control any desired changes in velocity. This adjustment was later done away with as redundant, because everyone ran them “wide open” anyway.
In the “low power” position, the hammer is actually held by the forward nose of the trigger itself, the actual sear plays no part in firing the gun. This tiny projection was meant only as a pivot point between the trigger and the sear.
Since no provision was ever made to control the over travel of the trigger, if the adjustment screw is not adjusted “just right”, the forward nose of the trigger is allowed to contact the hammer, acting as a low power position.
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Cr MkI trigr - 01a.jpg [ 204.1 KiB | Viewed 792 times ]
When the trigger adjusting screw is properly adjusted, there will only be a single point of contact with the hammer, and that is by the actual sear, not the trigger nose. This also allows for very fine adjustment of the sear engagement depth, and a resulting light trigger pull.
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Cr MkI trigr - 02a.jpg [ 220.07 KiB | Viewed 792 times ]
None of my Mark I or II pistols has a “two stage cocking”. They are all adjusted for a very light, crisp single position.
This post was made in response to an earlier thread in order to provide some additional info.
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just random thoughts. I have no means of doing it. I did think of adapting the frame to receive a cylinder from the rear. But the pistol aesthetics would be void at that point.