Replaces the factory double spring on Colt Officers ACP and the single spring on Para Ordnance P12. Must be used with full-diameter (nominal .330"), full-length, after market recoil spring guide rods. Factory standard is 22 lb. Supplied with extra power firing pin spring. Also fits Kimber Compact and Pro Carry with factory guide rod.
1911, Issue:09, Page:032
Big Book Catalog, Issue:65, Page:113
Sinclair, Issue:1A, Page:031
SPECS: Factory standard is 22 lb. recoil spring.