These fit GlockA(R) G43 / G43X / G48 only. These are great for completing your custom slide. PARTS INCLUDED: Firing Pin and Spring Spring Cups Safety Plunger and Spring Complete Extractor with LCI Extractor Depressor Plunger Assembly Slide Recoil Cover Plate Guide Rod (Recoil Assembly) Warning: This product is to be installed by a competent gunsmith. No liability is expressed or implied for damage or injury which may result from installation or use of this product. Mfg: Zaffiri