80 Power Factor spring (comes standard in Wiland PCC upper).
Designed to be used with low-power handloads.
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This was exactly what I needed! The gun runs flawlessly, put hundreds of rounds and no problems lighter recoil makes it easier to shoot.
Thanks to Wiland, for enhancing the performance of my Ruger PC 9 barrel. One of the problems with the PC9 is the excess weight. Todd is able to remove almost a pound of barrel and permanently attaching a lightweight shroud of legal length stainless steel. It is very professionally done and performs even better. My barrel is more accurate now than it was. The crown has to be done correctly to achieve this accuracy. Great job Todd. This is one of the best upgrades currently available for a Ruger PC9 barrel, and the turn around time was only two weeks. Thanks, Jim Martino