The White Label Armory AR15 Fire Control Group (FCG) Pin 10-Pack delivers precision-machined, heat-treated components for secure and reliable installation of your fire control assembly. Crafted on Swiss CNC equipment to exact Mil-Spec dimensions, these phosphate-coated pins ensure a perfect fit in any standard AR15 lower receiver. Designed for long-term durability and consistent performance, each pin in this 100 percent American-made set is ideal for both new builds and maintenance.