Description
The Rossi RS22M semi-auto rifle chambered in .22 WMR with a 21-inch barrel is a purpose-built rimfire platform for the shooter who wants more punch than .22 LR without stepping up to centerfire costs. Built on a gray Monte Carlo synthetic stock, this rifle balances handling, optics readiness, and reliability for small-game hunting, varmint control, and precision target work. With a factory-installed Picatinny rail and a detachable magazine, the RS22M delivers a straightforward setup for personal protection training or field use where moderate reach and controllability matter.
| Specification | Detail |
|---|---|
| Manufacturer | Rossi |
| Model | RS22M |
| Material | Synthetic stock, steel barrel (per manufacturer specs) |
| Compatibility | .22 WMR ammunition; standard Picatinny optics |
| Finish | Matte black barrel, gray synthetic stock |
| Weight | Approximately 5.5 lbs unloaded (per manufacturer specs) |
| Condition | New |
Key Features
- 21-inch barrel – WHY IT MATTERS: Delivers a longer sight radius and improved velocity retention for .22 WMR, giving you better accuracy at 75 to 100 yards compared to shorter barrels.
- Factory-installed Picatinny rail – WHY IT MATTERS: No gunsmithing needed to mount a red dot or scope; you can zero your optic in minutes and get on target fast for training or varmint hunting.
- Gray Monte Carlo synthetic stock – WHY IT MATTERS: Provides a raised cheek weld for optics use, resists weather and bumps, and reduces felt recoil so you stay comfortable during long range sessions.
- Semi-auto action in .22 WMR – WHY IT MATTERS: Offers faster follow-up shots than a bolt-action, making it effective for moving small game or multiple targets while keeping ammunition costs lower than centerfire calibers.
- Detachable magazine – WHY IT MATTERS: Enables quick reloads without fumbling with loose rounds, and simplifies unloading for safe storage after a day at the range.
Who It’s For
This rifle fits the concealed carrier who wants an affordable, low-recoil training platform to practice marksmanship fundamentals and transition drills without burning expensive .223 or 9mm. It also suits the home defender looking for a lightweight, optics-ready rimfire for perimeter pest control or backup duty. Small-game hunters and precision rimfire shooters will appreciate the 21-inch barrel’s accuracy potential and the .22 WMR’s flat trajectory over .22 LR.
Pros and Cons
- Pro: Optics-ready out of the box with a factory Picatinny rail – no adapter needed.
- Pro: .22 WMR offers nearly double the muzzle energy of .22 LR, improving terminal performance on varmints.
- Pro: Lightweight synthetic stock makes it easy to carry all day in the field.
- Con: The factory trigger has some creep and a heavier pull than aftermarket options – plan for a trigger upgrade if you want match-grade precision.
- Con: Magazine capacity is limited compared to some .22 LR semi-autos; you’ll need spare mags for extended sessions.
Comparison vs. Competitors
| Feature | Rossi RS22M | Savage A22 | Marlin 795 |
|---|---|---|---|
| Caliber | .22 WMR | .22 WMR | .22 LR |
| Barrel Length | 21 in | 22 in | 18 in |
| Stock Material | Synthetic | Synthetic | Synthetic |
| Optics Rail | Picatinny (factory) | Picatinny (factory) | Dovetail (requires adapter) |
| Magazine | Detachable | Detachable | Detachable |
| Weight (unloaded) | ~5.5 lbs | ~6.0 lbs | ~5.0 lbs |
| Price | $304.92 | ~$420 | ~$220 |
FAQ
What type of ammunition does the Rossi RS22M use?
The Rossi RS22M is chambered exclusively for .22 Winchester Magnum Rimfire (.22 WMR). Do not use .22 Long Rifle or .22 Short in this rifle. Use only high-velocity or standard .22 WMR loads for reliable cycling.
Can I mount a red dot or scope on this rifle?
Yes. The RS22M comes with a factory-installed Picatinny rail on the receiver, so you can mount any standard Picatinny-compatible red dot or scope without additional adapters or gunsmithing. Just attach and zero.
Is the Rossi RS22M legal for hunting small game?
Yes, in most states that allow .22 caliber rimfire for small game. The .22 WMR offers better energy and range than .22 LR, making it suitable for rabbits, squirrels, and varmints. Check your local regulations for specific caliber restrictions.
How many rounds does the detachable magazine hold?
The factory magazine holds 10 rounds of .22 WMR. Aftermarket magazines are available if you want higher capacity for range use, but always comply with local magazine capacity laws.
Is this rifle suitable for home defense?
It can serve as a low-recoil, budget-friendly option for home defense training, but .22 WMR lacks the stopping power of centerfire calibers like 9mm or .223. Use it for practice and pest control; rely on a centerfire rifle or handgun for primary home defense.
✓ Nationwide delivery (all 50 states)
✓ Ships 1-2 business days from our warehouse
✓ 30-day returns on unused items
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Browse more Semi Auto Rifles or check out our Rimfire Rifles for similar options. Need optics? See our Optics category for red dots and scopes.
Last updated: April 2026. According to NSSF data, rimfire ammunition accounted for over 40% of total ammunition sales in 2025, making the .22 WMR a growing choice for shooters seeking affordable performance.
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