Contains all the parts you need to complete the innards of an aftermarket slide or refurbish a factory slide to like-new standards. All the parts in our Glock(R)43/43x/48(R) Slide Parts Kit are aftermarket parts made to the correct dimensions for proper fit, finish, and function in a factory spec slide. The extractor is made from cast 17-4 SS. The extractor depressor plunger and firing pin safety are machined from bar stock. Includes channel liner tool to properly install the channel liner.Kit Includes: Extractor Extractor Depressor Plunger Extractor Depressor Plunger Spring Spring -Loaded Bearing Slide Cover Plate Billet Firing Pin Spacer Sleeve Firing Pin Spring Spring Cups Firing Pin Safety Firing Pin Safety Spring Guide Rod and Recoil Spring Assembly