The Ruger Mark IV 22/45 250th Anniversary (40194) is a single-action semi-automatic rimfire pistol chambered in 22 LR, built on the iconic Mark series platform with a 1911-style grip angle and a precision threaded bull barrel for shooters who want an accurate, suppressor-ready 22 LR target pistol with a commemorative touch. This rimfire pistol is a practical choice for competitive shooters, trainers, and hobbyists who want a capable and easy-to-maintain 22 LR handgun with a proven track record.
Key Features
- Part Number: 40194
- Caliber: 22 LR
- Capacity: 10+1 with detachable single-stack magazine
- Barrel: 4.40 inch cold hammer-forged alloy steel threaded bull barrel, blued finish, 1/2-28 thread pattern
- Grip Frame: Polymer, 1911-style angle with serrated frontstrap and checkered backstrap
- Grip Panels: Checkered 1911-style synthetic grip panels
- Receiver: Alloy steel, blued finish
- Overall Length: 8.50 inches
- Height: 5.50 inches
- Width: 1.22 inches
- Weight: 33.3 oz.
- Action: Single-action, blowback-operated semi-automatic
- Front Sight: Fixed
- Rear Sight: Adjustable
- Rifling: 1:16 inch right-hand twist, 6 grooves
- Barrel engraving: "Made in the 250th Year of American Liberty"
- Included Accessories: Thread protector, factory-installed scope mount compatible with RMR, DPP, and RMSc pattern optics
Special Features
- Internal cylindrical bolt construction locks the barrel and bolt in a fixed relationship, delivering permanent sight-to-barrel alignment that conventional moving-slide designs cannot match for consistent shot-to-shot accuracy.
- One-button takedown allows the barrel and receiver assembly to tilt up and off the polymer grip frame without tools, giving you full chamber-to-muzzle cleaning access in seconds.
- Factory-installed optics mount accepts RMR, DPP, and RMSc pattern micro red dots directly, with no additional adapter or gunsmithing required.
- Cold hammer-forged bull barrel produces uniform, precision rifling from muzzle to chamber, contributing to tight groups during extended range sessions and target work.
- The 1/2-28 threaded muzzle with included thread protector makes this pistol compatible with standard 1/2-28 suppressors and muzzle devices, making it well suited for suppressed 22 LR shooting setups.
- Ergonomic bolt stop and contoured ejection port with easy-to-grasp bolt ears allow smooth, reliable operation during high-volume firing without sharp edges that interrupt the shooting cadence.
- Commemorative barrel engraving marks this as a limited-production 250th Anniversary variant distinct from standard Mark IV 22/45 production models.
Practical Benefits
- The 1911-style grip angle mirrors the feel of a full-size centerfire pistol, making this an ideal training companion for 1911 owners who want to build trigger fundamentals and muscle memory at 22 LR ammunition cost.
- The adjustable rear sight lets you dial in point-of-impact for your preferred load without needing aftermarket components, keeping your range sessions productive from the first shot.
- The factory red dot mount means you can run a micro optic the same day you take possession, which makes this pistol immediately useful for competition shooters and optics-familiar buyers.
- At 33.3 oz. with a 4.40 inch bull barrel, this pistol sits steadily on target during slow fire and precision drills, giving you a stable platform for accuracy work at the bench or on the line.
- The one-button takedown removes the most common maintenance barrier on rimfire pistols, so you can keep the action clean and running reliably without wrestling with the disassembly process after every range session.
- Whether you are running suppressed on the range, competing in rimfire pistol events, or building handgun fundamentals through repetition, the Ruger Mark IV 22/45 250th Anniversary (40194) in 22 LR gives you a platform precise enough to reward the work you put in.
The Ruger Mark IV 22/45 250th Anniversary (40194) chambered in 22 LR is a solid fit for target shooters, trainers, and rimfire enthusiasts who want an accurate, optics-ready, suppressor-compatible pistol built on one of the most refined rimfire platforms in production.
| MANUFACTURER | RUGER |
| MODEL | MARK IV |
| CALIBER | 22 LR |
| TYPE | PISTOL |