Mauser M20 .22LR 4" Barrel 10-Round Black Pistol - Model 4010101
- Capacity-Rounds:
- 10
- Caliber-Gauge:
- 22 Long Rifle
- Barrel Length:
- 4"
- Barrel Length Range:
- 4" to 4.99"
- Frame Finish:
- Black
- Action:
- DA/SA
- Safety:
- Ambidextrous Thumb
- Grips:
- Black Textured
- Slide Description:
- Serrated
The Mauser M20 is a .22LR rimfire pistol built for shooters who want a manageable, controllable handgun for plinking, small-game hunting, or recreational range work. This 4-inch barreled variant strikes a balance between portability and sight radius, chambered in an affordable, low-recoil round that won't fatigue your hand over extended sessions. The M20's double/single-action design and aluminum slide construction make it a practical choice for anyone looking to build fundamentals or simply enjoy consistent, hassle-free shooting.
The ergonomic touches here matter: textured grip surfaces keep your hand steady in variable conditions, and the machined aluminum slide accepts both high-velocity and standard-velocity .22 LR ammunition without fuss. A hammer de-cocker lets you safely lower the hammer without firing, and the slide-mounted safety puts control exactly where you need it. Front and rear slide serrations aid your grip and sight picture, especially in low light. At just 1.4 pounds, the M20 won't wear you out during a long day of shooting, and the 10-round capacity keeps you on target longer between reloads.
This is straightforward, honest design: a well-made rimfire pistol that does its job without pretense. Whether you're introducing someone new to handguns or adding a low-recoil trainer to your collection, the M20 delivers the kind of reliable, uncomplicated performance that builds shooting confidence.
Key Features
- 4-inch barrel optimized for accuracy and handling
- Double/single-action trigger system with 4-pound trigger pull
- Hammer de-cocker for safe, controlled hammer lowering
- Machined aluminum slide compatible with standard and high-velocity .22 LR ammunition
- Slide-mounted manual safety
- Front and rear slide serrations for improved grip control and sight acquisition
- Textured grip for secure, comfortable handling
- 10-round magazine capacity
- Lightweight at 1.4 pounds for extended shooting sessions
Specifications
| Caliber | .22 LR |
| Barrel Length | 4 inches |
| Overall Length | 7.1 inches |
| Magazine Capacity | 10 rounds |
| Weight | 1.4 pounds |
| Trigger Pull | 4 pounds |
| Action | Double/Single Action |
| Slide Material | CNC Machined Aluminum |
| Safety | Manual, slide-mounted |
| Model | 4010101 |
Frequently Asked Questions
What ammunition does the Mauser M20 shoot?
The M20 is chambered in .22 LR and will safely and reliably fire both standard-velocity and high-velocity .22 LR ammunition. The aluminum slide is engineered to handle both velocities without adjustment.
Is this pistol good for someone new to shooting?
Yes. The .22 LR rimfire cartridge produces minimal recoil and noise, making the M20 an excellent platform for learning trigger control, sight alignment, and fundamental handgun discipline. The ergonomic grip and light weight also reduce fatigue during practice sessions.
What safety features does it have?
The M20 includes a slide-mounted manual safety and a hammer de-cocker. The de-cocker lets you safely lower a cocked hammer without firing the gun, adding an extra layer of control and safety.
What's in the box?
The product record provided does not include information about what is included with the pistol. Please contact Bosque Outdoors directly for details on standard accessories or included components.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.

