The Sig Armorer P220 SuperStrut Mainspring System

$60.00

PLEASE NOTE THIS VERSION IS FOR THE P220 ONLY!
If you have a non-P220 you may be interested in The Sig Armorer SuperStrut for the other P-Series models.

The Sig Armorer P220 SuperStrut:

  • 4140 Steel
  • EDM Wire Cut
  • Precision Hand Polishing
  • Nickel Boron Nitride Coating

The P220 SuperStrut Mainspring System fixes:

  • Safety Crossbolt Impact
  • Mainspring Offset (no more bent mainsprings!)
  • Mainspring Fatigue
  • Mainspring Gouging

The Sig Armorer P220 SuperStrut Mainspring System includes the Superstrut, ground and polished 20lb Wolff Spring, and new style mainspring seat. Do NOT use Superstrut; or the factory E2 Strut for that matter, with an aluminum or any other metal mainspring seat. The seat is designed to be made from plastic as it works as a bearing against the strut. Metal seats WILL be gouged by the strut and over time will create enough friction to reduce mainspring force and make the double-action pull both gritty and heavy.

In stock