per Jamie's post. The closepin spring to remove is Torsion Link Spring (yellow). You will need to acquire a spacer like the others or make one to replace the thickness of the removed spring. I don't have depingers for the M-Rod, but I do have several for the BSA PCP rifles...
[img]
![[linked image]](http://x-plane.org/home/MB-BOB/airguns/TriggerAfter.jpg)
[/img]