Have some fun with your favorite plinker with the ProMag® Ruger® 10/22™ .22LR 55-Round Drum Magazine. This aftermarket magazine features lightweight, impact-resistant poly-carbonate construction for superior strength and durability. An injection-molded polymer follower and heat-treated chrome silicon wire spring ensure smooth, reliable feeding in high-stress target environments. America’s most popular rimfire rifle for over half a century, the Ruger 10/22 is an iconic firearm that you probably already own. This aftermarket magazine was designed to elevate the average 10/22 into something even better. Like all ProMag magazines, these drum mags come with a lifetime warranty so if you ever have an issue with your purchase, you’ll receive a free replacement in the mail. Order today! Made in USA.