Description
This is the genuine factory replacement magazine for Rock Island 1911 pistols chambered in .22 Winchester Magnum. If you own the XT22 Magnum or another compatible Rock Island model, you'll want spares on hand. The magazine holds 14 rounds and is constructed from stainless steel with a nickel finish, designed to the exact specifications that Armscor uses in their manufacturing.
Armscor Magazine Construction and Materials
Built with a double-stack, single-feed design, this magazine combines a high-tensile steel spring with an anti-tilt polymer follower to keep rounds stacked properly and feeding smoothly. The stainless steel body resists corrosion, so it performs in different shooting conditions without degrading. The nickel finish adds an extra layer of durability and gives the magazine a clean appearance that complements the XT22's finish.
Magazine Features for Practical Use
The numbered witness holes let you count your loaded rounds without disassembling the magazine, which is helpful for consistency at the range or during training. The polymer floor plate absorbs impact and stays secure during normal use. Because this magazine is built to the same tolerances as Armscor's OEM equipment, it drops free and cycles reliably with your 1911.
Why You Need a Backup Magazine
The .22 Magnum round is about as niche as rimfire ammunition gets, which means finding spares for this platform can take time. Magazines wear out or get lost, and having an extra one is smart insurance. This mag fits tight enough that you're guaranteed proper function, but loose enough that you won't struggle getting it in and out of the grip.
Key Specifications
- Manufacturer: Armscor/Rock Island Armory
- Model: FG22MA
- UPC: 812285021294
- Caliber: .22 Winchester Magnum (.22 WMR)
- Capacity: 14 rounds
- Material: Stainless steel
- Finish: Nickel
- Feed Type: Double-stack, single-feed
- Spring: High-tensile steel
- Follower: Anti-tilt polymer
- Witness Holes: Numbered
- Floor Plate: Polymer
- Fits Models: Rock Island 1911 XT22 Magnum and compatible models
What’s Included
- 1 x Armscor FG22MA .22 WMR magazine (14-round capacity)
Frequently Asked Questions
Will this magazine fit my specific Rock Island 1911 model?
This magazine is designed for Rock Island 1911 pistols chambered in .22 Magnum, particularly the XT22 Magnum model. It's built to Armscor specifications that ensure a perfect fit in compatible Rock Island 1911s. If you have any doubt, contact us with your specific model number and we can confirm compatibility.
What's the difference between this and aftermarket .22 Magnum magazines?
This is the factory-spec magazine from Armscor, manufactured using the same materials and tolerances as the magazines that come with new XT22 Magnum pistols. It uses a double-stack design that lets you carry 14 rounds in a compact footprint, which is part of what makes the .22 Magnum platform interesting. The stainless steel construction and high-tensile spring ensure long-term durability.
How tight are the springs when the magazine is new?
Expect stiff spring tension when you first load a full magazine. The tension is by design to keep rounds secure and feed reliably. Many users find the springs break in after a few range sessions or will loosen up naturally with use. Some prefer to pre-load them partially and let them sit if you want them to ease up faster.
Is this magazine the same one that comes with the XT22 Magnum pistol?
Yes, this is the genuine Armscor factory magazine for the Rock Island XT22 Magnum. It's the standard equipment magazine made to the same specifications, so if you need a spare or replacement, this is exactly what you're looking for.






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