ASTRA 600 9mm Factory Power Recoil Spring with Firing Pin Spring by WOLFF

CZ DUO 6.35mm Factory Power Recoil & Striker Spring Kit NEW by WOLFF 24116

CZ 457 Series Rifles, EXTRA POWER FIRING PIN SPRING, ALL calibers

MARLIN 336A and other MODELS (FIRING PIN SPRING) (ITEM # J-4103)

AMT BACKUP 380 Recoil Spring with Firing Pin Spring by WOLFF 24012

ORTGIES 6.35mm FACTORY STANDARD RECOIL SPRING WOLFF MADE IN USA 24406

Kimber Compact Pro Carry 4 inch 9mm Recoil & Extra Power Firing Pin Spring Pak

CZ 45 1945 Double Action 6.35mm Factory Power Recoil Spring by WOLFF 24115