First Look: Mendoza RM 22 Rifle

An imported rifle based on the Hammerli action.

by
posted on April 18, 2025
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Mendoza RM 22 Rifle

Mendoza Firearms, a Mexican gunmaker that has been in business for more than a century, is now importing its Mendoza RM 22 rifle into the United States. The Mendoza RM 22 isn’t exactly a brand new 2025 product, as it’s based on the Swiss-made Hammerli SA22 design. The Mendoza RM 22 is a tube-fed semi-automatic rimfire .22LR carbine that’s available in three configurations, the RM-22 1000, RM-22 3000 and RM-22 6000. Each of these variants can be had in several different rifle stock options, both wooden and synthetic. While the actions are all the same, the primary difference between these three core models is the inclusion of a Picatinny optics scope base and thumbhole stocks.

The Mendoza Firearms RM-22 series offers shooters a general purpose rimfire semi-automatic carbine suitable for target shooting, plinking and outdoor activities. Like most other semi-automatic .22 LR firearms, the RM-22 works off a straight blowback action. These rifles also feed from a tubular magazine that is similar to those found on rimfire lever-action rifles.

Mendoza Firearms RM-22 1000 Rimfire Rifle Features and Specifications:

  • Country Of Origin: Mexico
  • Make: Mendoza Firearms
  • Model: RM-22 1000
  • Caliber: .22 LR Rimfire
  • Action: Semi-automatic blowback
  • Tubular Magazine Capacity: 17 rounds
  • Total Length: 40.9 inches
  • Height: 7.5 inches
  • Width: 1.8 inches
  • Barrel Length: 21.3 inches
  • Sights: Open tangent sights, rear adjustable, fiber optic front
  • Trigger Pull: 2 pounds, 9 ounces
  • Safety: Manual
  • Stock: German beech wood or camouflage synthetic
  • Buttpad: Rubber
  • Receiver Finish: Anodized black

‍The Mendoza RM-22 3000 and RM-22 6000 variants have similar specifications, but include a factory Picatinny scope base and a thumbhole or Monte-Carlo style stock with a raised comb.

Visit Mendoza Firearms’ website at mendozafa.com to learn more about the RM-22 series of rifles.

Latest

XS Sights offerings for Smith & Wesson M&P pistols.
XS Sights offerings for Smith & Wesson M&P pistols.

First Look: XS Sights Smith & Wesson M&P Sights

XS Sights just released a number of new sight options for Smith & Wesson M&P pistols.

Classics: Semmerling LM-4 Pistol

This manually operated oddity sure seemed like a good idea at the time.

First Look: Chiappa 60 DS .44 Magnum Revolver

Chiappa's large-frame revolver is chambered in a Dirty Harry-approved .44 Magnum.

Straight Talk: Know Your Gun

When you trust your life to a tool, you must know it inside and out.

First Look: Safariland Holster Fits for Glock Gen6 Pistols

Glock's latest generation of striker-fired handguns has dedicated holster fits from Safariland.

Ammo: .458 SOCOM

It’s a bigger, badder version of Jeff Cooper’s “Thumper.”

Interests



Get the best of Shooting Illustrated delivered to your inbox.