Wilson Combat Small Parts Lower Receiver Kit AR-10 Billet. These quality parts are built by Wilson Combat's machine shop or USGI contractors to meet or exceed Military Specifications. This kit includes a right hand safety selector. Specifications for Wilson Combat Lower Receiver Small Parts Kit: Manufacturer: Wilson Combat Color: Assorted Fabric/Material: Steel/Aluminum Condition: New Package Contents: Wilson Combat Lower Receiver Small Parts Kit Bullet Proof Bolt Release AR10/15 Checkered Bolt Catch Plunger Bolt Catch Threaded Screw for Billet Receivers Bolt Catch Spring Magazine Catch Magazine Catch Spring Magazine Catch Button Pivot Pin Takedown Pin 2x Pivot/Takedown detents 2x Pivot/Takedown detent springs Safety Detent Safety Detent pring Semi-auto Safety selector (Right Hand) 2x Trigger/Hammer Pins Wilson Combat TR-LOWERK-10: Small Parts Lower Receiver Kit AR-10 Billet