The Ruger Mark IV™ 22/45™ Model 40190 combines the legendary accuracy and reliability of Ruger's iconic Mark Series with ergonomics inspired by the 1911 platform. Chambered in .22 Long Rifle, this pistol is an excellent choice for target shooting, steel challenge competition, training, small game hunting, and recreational plinking.
One of the standout features of the Mark IV platform is Ruger's simple one-button takedown system, allowing the barrel and receiver to pivot from the grip frame for quick, tool-free field stripping and cleaning. The familiar 1911-style grip angle provides a natural point of aim, making it an ideal trainer for shooters who also carry or compete with centerfire handguns.
The Model 40190 features a 4.40-inch threaded bull barrel with ½"-28 threads for compatibility with most rimfire suppressors and muzzle devices (where legal). A factory-installed optics rail makes it easy to mount your favorite red dot sight, while the adjustable rear sight allows for precise zeroing with iron sights. Ruger's cold hammer-forged barrel and fixed-barrel design contribute to the outstanding accuracy the Mark Series is known for.
Whether you're introducing a new shooter to the sport or adding a suppressor-ready rimfire pistol to your collection, the Ruger Mark IV 22/45 delivers dependable performance, exceptional accuracy, and unmatched ease of maintenance.
Features
- Chambered in .22 Long Rifle
- 4.40" cold hammer-forged threaded bull barrel
- ½"-28 threaded muzzle with thread protector
- Ruger's one-button takedown for quick field stripping
- Polymer 22/45 grip frame with 1911-style grip angle
- Alloy steel receiver with blued finish
- Factory-installed optics rail
- Adjustable rear sight
- Fixed front sight
- Ambidextrous manual safety
- Push-button magazine release
- Two 10-round magazines included
- Made in the USA
Perfect For
- Target shooting
- Steel Challenge competition
- Rimfire training
- New shooters
- Suppressor hosts (where legal)
- Small game hunting
- Recreational plinking
Why Choose the Ruger Mark IV 22/45?
For decades, Ruger's Mark Series has set the standard for dependable rimfire pistols. The Mark IV 22/45 modernizes that legacy with its easy takedown system, optics-ready design, threaded barrel, and 1911-inspired ergonomics. It's a versatile pistol that's equally at home on the range, in competition, or in the field.