The ProMag RUG-A16 RUGA16 is a robust 23-round magazine crafted especially for the Ruger 10/22. It impresses with its resilient injection molded housing and follower, which are produced from a glass-filled nylon polymer that withstands impacts with ease. The reliability of its feeding mechanism is ensured by a heat-treated chrome-silicon spring. All components of this top-tier magazine are proudly manufactured in the USA.