The Wilson Combat TR-LOWERK-10 provides essential components to finish your custom WC-10 rifle lower receiver. Built with the same precision parts utilized in Wilson Combat's renowned shop, this kit ensures optimum performance and reliability. This assembly kit includes a right-hand safety selector and crucial components tailored specifically for WC-10 style lowers. Note that it does not include fire control parts such as Hammer, Trigger, and Springs, and is intended solely for the WC-10 lower receiver. Wilson Combat Bullet Proof Bolt Release WC-10 Bolt Catch Screw for WC-10 Billet Lower Bolt Catch Plunger, Roll Pin, and Spring Magazine Catch and Magazine Catch Spring Magazine Catch Button WC-10 Pivot Pin and Takedown Pin 2x Pivot/Takedown Detents and Detent Springs Safety Detent and Safety Detent Spring Semi-auto Safety Selector (Right Hand) Elevate your build with the Wilson Combat TR-LOWERK-10 for unmatched quality and performance.