These Spring Kits for GlockA(R) handguns includes commonly replaced springs and the recoil spring assembly. The Kit includes a Firing Pin Spring, Extractor Depressor Plunger Spring, Trigger Spring, Recoil Spring Assembly and the Firing Pin Safety & Spring Assembly. Available for all models of GlockA(R) handguns. Great kit for refreshing a well used GlockA(R) or for repair. Mfg: Glock