Mec-Gar 10-Round Steel Blue Magazine for Ruger Mark III 22/45 .22LR

If you shoot a Ruger Mark III 22/45, you know that reliable magazines are as important as the pistol itself. The Mec-Gar 10-round steel blue magazine for Ruger Mark III 22/45 .22LR gives you a dependable, well-built alternative to factory mags—the kind of spare that serious .22 shooters keep on hand for range days, competition, or plinking sessions. Mec-Gar has built a reputation manufacturing OEM magazines for major firearms makers, and this magazine brings that same engineering to the aftermarket.

Built from heat-treated carbon steel with a blued finish, this magazine is made to last. The high-tensile music wire spring ensures consistent feeding cycle after cycle, and the polymer follower and flush-fit floorplate are engineered to work smoothly with your Mark III's design. Ten rounds gives you a practical capacity for most shooting scenarios without excessive bulk.

Whether you're stocking up on spares, replacing a worn mag, or just want the peace of mind that comes with a quality backup, this Mec-Gar magazine delivers the reliability you'd expect from a brand that supplies to the firearms industry. It's the kind of thing you buy once and never think about again—until you're glad you have it.

Key Features

• Heat-treated carbon steel construction with blued finish for durability
• 10-round capacity optimized for .22 LR shooting
• High-tensile music wire spring for reliable feeding
• Polymer follower and flush-fit floorplate designed for Mark III ergonomics
• Built by Mec-Gar USA, a trusted OEM magazine manufacturer

Specifications

Frequently Asked Questions

Will this magazine work with my Ruger Mark III 22/45?

Yes. This Mec-Gar magazine is designed specifically for the Ruger Mark III 22/45 platform and is fully compatible with that pistol.

What makes this magazine better than the factory original?

Mec-Gar manufactures magazines for major firearms makers as an OEM supplier. This aftermarket version uses the same engineering principles—heat-treated steel, high-tensile spring, and durable polymer components—and offers a reliable spare or replacement option. Many shooters prefer having multiple quality magazines on hand.

How many rounds does it hold?

The magazine holds 10 rounds of .22 LR ammunition.

Does the floorplate sit flush with the pistol?

Yes. The polymer floorplate is designed to sit flush with the Ruger Mark III 22/45, maintaining the pistol's profile and ergonomics.