Mec-Gar Ruger Mark III 22/45 Handgun Magazine .22 LR 10/rd

The Mec-Gar Ruger Mark III 22/45 Handgun Magazine in .22 LR with 10-round capacity is a purpose-built replacement or backup magazine for the Ruger Mark III 22/45 platform. Built to OEM specifications, this magazine delivers the reliability operators and sport shooters demand during extended range sessions, training drills, and competition shooting where magazine changes are frequent and downtime is costly.

The magazine features a heat-treated carbon steel tube paired with a high-tensile music wire spring—the same metallurgical approach used in duty-grade ammunition magazines to ensure consistent feeding across thousands of rounds. The high-impact polymer follower and flush-fit polymer floorplate eliminate snag points and keep the overall profile compact in the hand. Heat-treated steel resists deformation under sustained use, maintaining spring tension and feed reliability over extended service life. The blued finish matches factory Mark III 22/45 magazines and resists light corrosion in typical storage and field conditions.

This 10-round magazine serves rimfire competitors, sport shooters building backup magazine supplies, and shooters who prefer factory-equivalent performance without premium pricing. The Ruger Mark III 22/45 is a popular platform for precision rimfire work and casual target shooting, making reliable, affordable magazines essential for maintaining training volume. A second or third magazine eliminates range downtime and allows faster magazine rotation during intensive practice sessions.

Mec-Gar manufactures magazines for military, law enforcement, and civilian markets worldwide, with OEM production agreements across multiple manufacturers. This magazine meets the same dimensional and functional standards as genuine Ruger factory magazines, ensuring drop-in compatibility and consistent performance with your Mark III 22/45.