Description
Mauser Rimfire M20 .22 LR 4″ 10+1 Black
The Mauser Rimfire M20 .22 LR 4″ 10+1 Black is a reliable, feature-packed semi-automatic pistol designed for family range trips, training sessions, and recreational plinking. It pairs a black steel barrel with a CNC-machined aluminum slide and frame, giving you a durable yet lightweight platform that’s easy for beginners and youth shooters to handle.
| Manufacturer | Mauser |
|---|---|
| Model | Rimfire M20 |
| Material | Steel barrel, aluminum slide, aluminum frame |
| Compatibility | .22 LR ammunition, standard Picatinny accessories |
| Finish | Black |
| Weight | 24.3 oz (per manufacturer specs) |
| Condition | New |
Key Features
- Double/Single Action Trigger – Why it matters: This gives you a heavier first pull for safe carry, then lighter, consistent shots for accurate follow-ups—ideal for teaching new shooters trigger control.
- Hammer Decocker & Ambidextrous Safety – Why it matters: You can safely lower the hammer without pulling the trigger, and lefties can easily engage the safety. Perfect for family use where different shooters share the same gun.
- Picatinny Rail – Why it matters: Mount a light or red dot to help young or new shooters acquire targets faster and stay visible in low-light conditions.
- Front and Rear Slide Serrations – Why it matters: Gives you a solid grip when racking the slide, even with sweaty or smaller hands—great for beginners building confidence.
- Ergonomic Grips – Why it matters: Reduces hand fatigue during long range sessions and helps smaller shooters maintain a comfortable, secure hold.
Who It’s For
The M20 is built for families, youth shooters, and anyone starting their rimfire journey. Its light recoil, manageable size, and safety features make it a top pick for teaching safe gun handling. Experienced shooters will also appreciate it as a budget-friendly trainer or plinker.
Pros & Cons
Pros: Lightweight aluminum frame, reliable double/single-action trigger, easy-to-use ambidextrous safety, Picatinny rail for add-ons, affordable price point.
Cons: The trigger pull in double-action mode is a bit heavy (around 10 lbs) per Mauser specs, which may require some practice for smaller shooters—but it reinforces safe handling habits.
Comparison: Mauser M20 vs. Geissele Automatics GMR-22 vs. Lone Wolf Distributors Timberwolf
| Feature | Mauser Rimfire M20 | Geissele Automatics GMR-22 | Lone Wolf Distributors Timberwolf |
|---|---|---|---|
| Caliber | .22 LR | .22 LR | .22 LR |
| Action | Double/Single | Single action | Single action |
| Weight | 24.3 oz | 28.5 oz | 26.1 oz |
| Safety | Ambidextrous + decocker | Ambidextrous thumb safety | Ambidextrous thumb safety |
| Rail | Picatinny | Picatinny | Picatinny |
| Price | $305.53 | $1,295.00 | $499.99 |
FAQ
What type of ammunition does the Mauser Rimfire M20 use?
It fires standard .22 LR ammunition. Stick with high-velocity rounds (like CCI Mini-Mag) for best reliability during break-in.
Is the Mauser M20 safe for left-handed shooters?
Yes. The slide-mounted safety is ambidextrous, so lefties can engage and disengage it easily. The decocker also works from either side.
Can I mount a red dot sight on this pistol?
Yes. The Picatinny rail under the barrel accepts most lights and laser/red dot combos. For a slide-mounted optic, you’d need an adapter plate (sold separately).
What is the warranty on the Mauser Rimfire M20?
Mauser offers a limited lifetime warranty on manufacturing defects. Check with your dealer for specific terms.
Ready to Add the Mauser Rimfire M20 to Your Collection?
This .22 LR semi-auto is a smart choice for family range days, training, and plinking. Order yours today and enjoy fast, secure shipping.
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more Semi Auto Handguns or check out our Rimfire Pistols for similar options.
Last updated: April 2026
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