Description
This is the genuine factory magazine that Ruger designed specifically for the Mark III and Mark IV pistol platform. E-nickel steel construction resists corrosion, while a durable polymer baseplate and follower work together to handle thousands of rounds of .22 LR without losing a beat. The reloading button makes it quick and easy to top off between magazine changes.
What Makes the Mark III/IV Magazine Dependable
The magazine uses a rugged steel wire spring and anti-tilt polymer follower to keep rounds properly aligned and feeding smoothly under firing. These mags ship with Ruger pistols for good reason, they've been proven through countless range sessions and training courses. Drop protection comes from the impact-resistant polymer baseplate, which is also removable for easy cleaning if you ever need to maintain it.
Built for Your Mark III or Mark IV
This magazine is engineered to fit and function in Mark III and Mark IV pistols only. It won't work in Mark I, Mark II, or any of the 22/45 models, so make sure you're pairing it with the right firearm. Once you've got the right gun, these mags drop right in and work just like the one that came with your pistol.
Loading and Shooting
With 10 rounds of .22 LR capacity, you'll spend more time shooting and less time reloading. The convenient loading button and witness holes let you see your round count at a glance. Whether you're working on accuracy at the bench or running through drills for speed, these magazines keep pace with your shooting goals.
Key Specifications
- Manufacturer: Ruger / Sturm, Ruger & Co.
- Manufacturer Part Number: 90231
- UPC: 736676902316
- Caliber: .22 Long Rifle (.22 LR)
- Capacity: 10 Rounds
- Compatible Models: Ruger Mark III and Mark IV pistols
- Material: E-nickel steel body with polymer baseplate and follower
- Finish: E-nickel (electroless nickel)
- Length: 14 inches
- Type: Detachable Magazine
- Spring: Steel wire spring
- Shipping Weight: 0.1 lbs
- Country of Origin: United States
What’s Included
- 1x Ruger Mark III/IV .22 LR 10-Round Magazine
Frequently Asked Questions
Will this Mark III/IV magazine work in my older Ruger Mark II pistol?
No, this magazine is specifically designed for Mark III and Mark IV models only. Older Mark I and Mark II pistols use different magazine designs that aren't compatible. If you own an earlier generation Ruger rimfire pistol, you'll need magazines made for that specific model.
Can I use this magazine in a Ruger 22/45 pistol?
No, the 22/45 models use their own dedicated magazines. This Mark III/IV magazine won't fit in 22/45 pistols, so make sure you're ordering the correct magazine for your specific Ruger model before purchasing.
What's the difference between the factory Ruger magazine and aftermarket options?
Factory Ruger magazines are engineered in the same facility where Mark III and Mark IV pistols are built, ensuring exact tolerances and fit. Many users report that aftermarket magazines can have feeding or release issues, while the factory magazine performs reliably out of the box every single time.
Is the baseplate removable for cleaning?
Yes, the impact-resistant polymer baseplate is removable, which makes it easy to disassemble the magazine for cleaning and maintenance whenever you need to. This helps you keep everything running smoothly if you shoot frequently.






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