Sig Sauer 8900979: This product contains all the factory replacement parts constructed with corrosion-resistant material for your P320 slide, excluding barrel, sights, and recoil assembly. The parts included are: Extractor, Extractor Pin, Extractor spring, Extractor spring pin, Striker group assembly, and Rear slide cap.
Please note that the installation of these parts kits involves disassembling your firearm beyond a field-stripped condition. If installed improperly, it may lead to malfunction, serious injury, or death. Therefore, we recommend that only certified SIG Sauer armorers undertake the installation process.
Additionally, bear in mind that any damage caused due to incorrect installation of these parts kits is not covered under your firearm's warranty. SIG Sauer will have to charge you for repairs if your firearm is damaged because of inappropriate use or incorrect installation of these parts kits.