Ruger Expands Mark IV Lineup: Introducing the 22/45 with Threaded Bull Barrel
Author: Marko L. | Publish Date: May 09, 2025 | Fact checked by: Aleksa Miladinovic
Innovative Evolution in Rimfire Design
Ruger has expanded its popular Mark IV series with an exciting new addition that bridges the gap between standard models and premium tactical variants. The new Mark IV 22/45 with threaded bull barrel delivers enhanced functionality with suppressor and optics compatibility at a competitive price point.
Heritage Meets Modern Innovation
A Legacy of Excellence
Building upon the foundation established by the iconic 1949 Ruger Standard (Mark I) pistol, the Mark IV series launched in 2016 representing a significant advancement in rimfire autoloader design. The hallmark feature of this generation is the revolutionary tool-free, one-button takedown system that dramatically simplifies field-stripping and maintenance procedures.
The 22/45 Advantage
The 22/45 variant earned its designation by incorporating the ergonomic grip angle and familiar controls of the legendary 1911 Government model, offering shooters a comfortable transition between platforms. Until now, enthusiasts seeking a 22/45 with both a threaded barrel and top Picatinny rail had to opt for the more premium-priced Mark IV 22/45 Tactical, which carries an MSRP of $669.
Key Features and Specifications
Performance-Driven Design Elements
The new Mark IV 22/45 with threaded bull barrel includes:
- Bull barrel profile with factory-threaded muzzle for suppressor attachment
- Integrated Picatinny rail for mounting optics
- Distinctive two-tone aesthetic with stainless steel trigger and matching Picatinny rail
- Contoured ejection port for improved reliability
- Ergonomic bolt ears for enhanced manipulation
- Built-in magazine safety
- Ships complete with two magazines
Value Proposition
At a manufacturer's suggested retail price of $449 – with actual retail pricing often lower – this new variant delivers premium features previously available only in higher-priced models, representing significant value for rimfire enthusiasts.
Versatility for Various Applications
This latest addition to the Mark IV family positions itself as a versatile option for target shooting, small game hunting, and introductory training, with the added benefit of suppressor compatibility for noise reduction and improved shooting comfort.
| Specifications | RUGER MARK IV 22/45 |
|---|---|
| CAPACITY | 10+1 |
| RECEIVER MATERIAL | Alloy Steel |
| FRONT SIGHT | Fixed |
| BARREL LENGTH | 4.40" |
| GRIP FRAME | Polymer |
| GRIPS | Checkered Synthetic |
| FINISH | Blued |
| WIDTH | 1.22" |
| REAR SIGHT | Adjustable |
| BARREL STYLE | Threaded Bull |
| WEIGHT | 33.3 oz. |
| OVERALL LENGTH | 8.50" |
| HEIGHT | 5.50" |
| GROOVES | 6 |
| TWIST | 1:16" RH |
| SUGGESTED RETAIL | $449.00 |
Author:
Marko Lalovic
Marko is a dedicated aviation enthusiast whose passion began with an unforgettable encounter with fighter jets at an air show in his home country. As an audiophile and sound engineer by training, Marko was initially captivated by the distinctive sonic signature of military aircraft—the thunderous roar of afterburners and the precise mechanical symphony of aviation systems. This auditory fascination evolved into a comprehensive interest in defense technology, particularly firearms engineering and ballistics acoustics.