The SIG SAUER P365 trigger Kit is a direct replacement to your stock trigger. Includes the trigger, spring, and pin.FeaturesFactory replacement partDirect replacement for stock triggerIncreases leverageNote: Installation of these parts kits require disassembly of your firearm beyond a "field-stripped" condition. Improper installation may result in malfunction, serious injury, or death. SIG SAUER requires that only certified SIG SAUER armorers install these parts kits. Any damage caused by the incorrect installation of these parts kits are not covered by your firearm's warranty, and SIG SAUER will charge for any needed repairs to a firearm damaged by improper use or installation of these parts kits.