Description
The Mec-Gar Ruger Mark II .22 LR magazine gives you a solid aftermarket option if you need spare mags for your Mark II or want a factory-grade replacement. With a 10-round capacity, it keeps your pistol loaded for range sessions, plinking, and competitive shooting. This magazine uses a heat-treated carbon steel tube with a high-tensile music wire spring and polymer follower. The blued finish resists corrosion, and the overall construction is designed to handle years of regular use without wearing out.
Mec-Gar has been making magazines since 1965 and supplies major firearm manufacturers worldwide, so you're getting established expertise in every detail. The magazine features an easy-load button that makes filling those 10 rounds less of a chore on your thumbs. It fits flush with your pistol grip and uses a removable polymer baseplate for easy cleaning and maintenance.
One thing to keep in mind: Ruger Mark II rimfire magazines can be picky about fit and feeding depending on your individual pistol. Mec-Gar builds these to standard tolerances, but some owners report better results after a light polishing of the feed lips and magazine button track. This is pretty common across all Mark pistol magazines, not just these. Out of the box, most owners report solid performance, though some find a few rounds through the gun smooths out any stiffness.
Key Specifications
- Manufacturer: Mec-Gar
- Model: Mark II (MK II)
- Caliber: .22 LR
- Capacity: 10 rounds
- Finish: Blued/Blue-Oxide
- Material: Heat-Treated Carbon Steel Tube
- Spring: High-Tensile Music Wire
- Follower: Polymer with Easy-Load Button
- Baseplate: Impact-Resistant Polymer (Removable)
- Length: 9.2 inches
- Manufacturer Part Number: MGMK22LRB
- UPC: 765595106406
What’s Included
- 1x Mec-Gar 10-round magazine
Frequently Asked Questions
Will this magazine work in a Ruger Mark I or Standard Model pistol?
Yes. The follower button can be swapped to the opposite side to work with Mark I and Standard Model pistols, which takes just a minute. Out of the box, it's configured for Mark II pistols, but the simple conversion makes it compatible with earlier models too.
How does this magazine compare to the factory Ruger magazine?
Mec-Gar is widely believed to manufacture Ruger's OEM magazines in Italy. The main visible difference is the follower button style. This magazine uses the traditional 0.250-inch diameter button, while newer Ruger magazines use a larger button design. Both function similarly when properly set up.
Do I need to polish or tune this magazine out of the box?
Most owners report it works fine straight from the box. Some find that running 20 or 30 rounds through the pistol settles any initial stiffness. If you experience feeding issues, light polishing of the feed lips and magazine button track can help, though this is rarely necessary with standard Mark II pistols.
Is this magazine reliable for target shooting and practice?
Yes, it's built for exactly that use. The heat-treated carbon steel construction and quality spring handle consistent feeding through thousands of rounds. It's a practical choice for range sessions and target competition.
Can I use this with hollow point ammo?
This magazine can feed hollow points, though some Mark II pistols are more ammo-sensitive than others. Round-nose ammunition tends to feed more reliably. If you stick to standard velocity or high-velocity round-nose .22 LR, you should have no issues.
How do I clean this magazine?
The removable polymer baseplate makes cleaning simple. Just unscrew the bottom and pull out the spring and follower. A quick rinse with water and light brush removes any dirt or debris. Let the parts air dry before reassembling.





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