The Ruger Mark III/IV Magazine (MPN 90231) holds 10 rounds of .22 LR and is a genuine factory magazine for the Ruger Mark III and Mark IV pistols.
Key Specifications
- Holds 10 rounds of .22 LR.
- Fits the Ruger Mark III and Mark IV pistols.
- Finished in blued steel.
- Uses a detachable box-magazine design.
- Sold as a 1-pack.
- Classified by Ruger as a Magazine.
- Built with high-quality components and precise manufacturing, per the manufacturer.
- A genuine factory-pattern spare or replacement magazine.
- Manufactured by Ruger / Sturm, Ruger & Co..
Frequently Asked Questions
What pistols does this magazine fit? It’s built for the Ruger Mark III and Mark IV chambered in .22 LR.
Is this a genuine Ruger magazine? Yes, it’s a factory Ruger magazine, not an aftermarket clone.
Buy the Ruger Mark III/IV Magazine
Shop it directly from Ruger / Sturm, Ruger & Co., or browse the full Handgun Magazines selection at Schaefer Defense.

