This kit includes all of the parts to completely assemble a bare 9mm slide (with the exception of barrel, recoil spring assembly and sights). Does not fit Gen5 or G43/43x/48Kit includes the following: Firing Pin Safety (9/40/357/10) Spring Load Bearing LCI 9mm Firing Pin Safety Spring Firing Pin (9/40/357) Extractor Depressor Plunger Spring Channel Liner (all models) Spacer Sleeve Firing Pin Spring Mid-Weight Extractor LCI 9mm Pin Spring Cup - Marine Unlined Slide Cover Plate - Black Extractor Depressor Plunger 9/40/357/45GAPDISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.