Direct replacement OEM Sig PartTrigger Pin compatible with the following models:P365P365 SASP365 XLTrigger Pin compatible with the following calibers:9mmFinished in BlackKit includes the following pieces:Trigger PinWe also sell the Trigger Pin with the Trigger Spring in a kit to make it easier to install your aftermarket upgraded trigger here:Trigger Pin with Trigger Spring KitTrigger Spring Only