Head to the range for a full day of target practice and tactical training with the ProMag® Ruger® 10/22® .22LR 50-Round Drum Magazine. Engineered for maximum versatility and quick-loading field performance, this high-capacity rimfire drum magazine comes equipped with an innovative ratcheting loading lever, designed to eliminate spring tension for speedy reloads and jam-free performance, while the chrome silicon wire spring and self-lubricating polymer follower ensure smooth operation and reliable feeding performance under stress. Plus, the corrosion-resistant polymer body delivers exceptional durability without any added weight, and the precision-engineered, steel-reinforced feed lips ensure a snug, wobble-free fit for added reliability. Made in USA.