Wolff Service paks for Glock pistols contain the following replacement springs to return the pistols to original factory condition: Wolff recoil spring, striker spring, trigger spring, extractor plunger spring and firing pin block spring.  Fits Gen 1 – 3 pistols.  69541

Please note: The recoil springs included are for use with Wolff guide rods only and not a replacement factory captive recoil spring assembly.