This is a factory 9-round (old-style) magazine for Ruger Mark I pistols
Bill Ruger launched his company based on a rimfire pistol he built in his garage—that went on to set the gold standard for accuracy, reliability, and value that simply can’t be beat. They’re the most popular rimfire handguns in the world. That’s thanks in no small part to their ultra-reliable factory magazines …
These 9-round steel factory magazines come with an easy-to-use reloading button, wide cuts on each side for keeping an eye on ammo count, and a steel baseplate with the Ruger company logo. Designed exclusively for use with Mark I (old style) Ruger .22 LR pistols, these magazines will not work in newer versions (Mark II on).
Grab a few spare magazines while they’re in stock, and keep your Mark I running for decades more to come.