The mismatch between the Plinkster FFH kit and the CP-1M pistol lies in the use of the OEM endcap to provide one of the attachment points for the grip. The replacement endcap supplied in the FFH kit (part 'M' in the installation guide) lacks the necessary screw hole, making grip attachment problematic.
So here's how to easily modify the FFH kit to work with the OEM endcap.
Notch the sides of one of the supplied spacer washers.
This makes it possible to push the FFH Tether through the washer...
...loop it over the notches...
...and anchor the tether to the washer.
This makes it possible to anchor the washer to one end of the hammer spring...
...and then insert the spacer washer end of the spring through the guide washer and into the hammer.
Note that this is the reverse of the Plinkster assembly in which the Pusher end of the tether goes into
the hammer. The OEM endcap can then be inserted, preserving the attachment point for the pistol grip.
This message has been edited by pneuguy on Feb 3, 2018 12:33 AM
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