Description
This is the factory magazine for your Rossi RS22M rimfire rifle, chambered in 22 WMR. It holds 10 rounds and features tough polymer construction that resists corrosion and handles years of regular use at the range or in the field. The side-facing load-assist lever makes it genuinely easier to load compared to magazines from competing manufacturers, and that's not a minor detail when you're prepping multiple mags before heading out.
Load-Assist Design and Ease of Use
The integrated load-assist lever takes a real edge off loading duties, especially when you're running multiple magazines. The same lever also serves as a witness window, so you can see at a glance how many rounds remain in the magazine. This is a practical detail that shows Rossi put actual thought into the design rather than just stamping out generic parts.
Reliable Feeding and Durability
Users consistently report flawless feeding through their RS22M rifles with zero malfunctions. The magazine feeds rounds smoothly and the spring maintains consistent tension shot after shot. Because this is a genuine Rossi factory magazine, it's engineered to exact specifications for the RS22M platform. The polymer body is durable enough for hard use without being fragile, and it won't corrode or degrade from moisture or UV exposure like cheaper alternatives can.
Stocking Spares for Extended Range Sessions
With a 10-round capacity, loading up several of these mags before you hit the range means much less downtime. Pre-loading three or four of them makes you feel like you've got extended capacity without sacrificing the compact size of each magazine. This approach gives you way more trigger time and keeps your focus where it belongs.
Key Specifications
- Manufacturer: Rossi
- Model: RS22M
- Caliber: .22 Magnum (WMR)
- Capacity: 10 rounds
- Construction: Polymer
- Finish: Black
- Manufacturer Part Number: 358-0018-00
- UPC: 754908226306
- Length: 8.5 inches
- Features: Side load-assist lever, witness window
What’s Included
- 1x Rossi RS22M magazine (10-round capacity)
Frequently Asked Questions
Is this magazine compatible with other Rossi rimfire models?
This magazine is specifically designed for the Rossi RS22M semi-automatic rifle in 22 Magnum. Rossi makes separate magazines for their 22LR models and bolt-action 22 Magnum rifles, so check your rifle's manual or the mag well to confirm compatibility before purchasing.
Does the load-assist lever really make loading easier?
Yes. The side lever provides genuine assistance when seating rounds, reducing finger fatigue during loading sessions. Multiple users report this lever system works better than competing 22 Magnum magazine designs, making it noticeably easier to fill the magazine completely.
Will this polymer magazine hold up to regular use?
Factory reports and user experience show these magazines handle years of regular range use without degradation. The polymer resists UV damage and corrosion better than bare metal, and the steel spring maintains consistent tension. Many users buy multiple spares and rotate through them for extended shooting sessions.
What should I do if my magazine doesn't feed reliably?
This is rare with genuine Rossi magazines, but confirm you're using this magazine only in RS22M rifles. If issues persist, try different ammo brands since some 22 Magnum loads are finicky in semi-autos. Contact Rossi customer service if problems continue, as factory magazines carry their warranty.






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