P-Series Master Spring Set
The Grayguns P-Series Master Spring Set (P-MSS) replaces our previous DIY Action Upgrade Spring Kits. The kit is fully compatible with the following, modern DA/SA SIG SAUER P-Series pistols:
P220, P224, P225A1, P226, P227, P228, P229, and the P226 X-Five Allround.
And one kit to tune them all…
To simplify your ordering experience, our new P-Series Master Spring Set (P-MSS) replaces our previous DIY Action Upgrade Spring Kits.
P-MSS includes both our 17X and 19X mainsprings, uprated firing pin return spring, new-style competition safety lock spring, and our competition sear spring. Order the appropriate pin for your pistol separately from our menu if needed.