SIGMA Current 4 Inch BBL Pistols (SD Series)

CURRENT PRODUCTION SIGMA and SD9/40 MODELS WITH 4" BARRELS (C, E, G, GP, P, V, & VE SERIES) 9mm, .40 S&W, and .357 Sig.

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Recoil Spring

Recoil springs are available individually with load-rated specifications to tailor the recoil function to individual needs. Each load-rated recoil spring includes a replacement factory power striker spring.

Note: Recoil springs must be used with a solid, non-captive guide rod such as the Wolff guide rod listed above. Spring will not be captive.

  • Reduced Power.......:  15 & 17 Lb.
  • Factory Std.............:  18 Lb
  • Extra Power.............: 19, 20, 22 & 24 Lb.

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Guide Rods

Wolff recoil spring guide rods for Sigma pistols are the ideal companion for Wolff recoil springs. Guide rods are solid steel, hardened to a minimum of 55-RC and now have a jet black finish that won't wear off and provides corrosion protection. Wolff guide rods provide optimum performance for Wolff recoil springs through better support and spring alignment. Permits you to keep factory recoil assembly intact. Available as guide rod alone, or your choice of recoil spring. Please see spring rating information above. Fits 4 Inch Models Only.

Guide Rod Only

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Guide Rod & Recoil Spring Set

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Striker Spring

W. C. Wolff Company offers reduced power striker springs (firing pin springs) for Sigma pistols rated at 3.5 pounds. The factory spring is 4.75 pounds. This spring will help reduce trigger pull. 
For use in all Sigma series pistols except .380. 
Warning: For competition use only - not for duty use.

SKU Description Price($) Add to cart
30085 S&W SIGMA RP STRIKER SPRING 3.5 LB Pak of 1 3.49
30086 S&W SIGMA RP STRIKER SPRING 3.5 LB Pak of 3 7.99
30087 S&W SIGMA RP STRIKER SPRING 3.5 LB Pak of 10 16.99
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Magazine Spring

Magazine springs are available in +5% extra power to assure proper feeding in pistols with weakened or broken springs.

For Use In:  .40 Caliber, 14 and 15 rounds Only
SKU Description Price($) Add to cart
79431 S&W SIGMA VE/F .40 +5% XP MAG SPRING Pak of 1 8.99
79433 S&W SIGMA VE/F .40 +5% XP MAG SPRING Pak of 3 20.59
79434 S&W SIGMA VE/F .40 +5% XP MAG SPRING Pak of 10 58.99
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