Ruger Mark IV 22/45 Lite
Sturm, Ruger & Co. · Pistol · In Production · 2017
Also known as: Mark IV 22/45 Lite, MK IV 22/45 Lite, MKIV 22/45 Lite
Overview
The Ruger Mark IV 22/45 Lite is a semi-automatic pistol chambered in .22 Long Rifle, produced by Sturm, Ruger & Co.
Specifications
| Weight (empty) | 709 g (25.0 oz) |
| Weight (loaded) | 774 g (27.3 oz) |
| Overall Length | 213 mm (8.39") |
| Barrel Length | 112 mm (4.41") |
| Height | 140 mm (5.51") |
| Width | 31 mm (1.22") |
| Sight Radius | 168 mm (6.61") |
| Action Type | Blowback |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Action |
| Trigger Pull | 22.2 N (5.0 lbf) |
| Magazine Capacity | 10 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 320 m/s (1050 fps) |
| Muzzle Energy | 133 J (98 ft·lbf) |
| Effective Range | 50 m (55 yd) |
| Maximum Range | 1500 m (1640 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 406 mm (15.98") |
| Number of Grooves | 6 |
| Frame Material | Polymer |
| Slide Material | Aluminum |
| Barrel Material | Stainless Steel |
| Finish | Anodized |
Calibers
- .22 Long Rifle · primary — also known as .22 LR, 22 LR, 22 Long Rifle
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Ambidextrous Manual Safety, Magazine Disconnect
- Features: One Button Takedown, 1911 Style Grip Angle, Adjustable Rear Sight, Fixed Ramped Front Sight, Cold Hammer Forged Barrel, Threaded Barrel, Ventilated Barrel Shroud, Checkered Grip Panels, Drilled And Tapped Receiver, Drop Free Magazines
Base model
Service history
Operators
- U.S. Recreational Shooters / Plinkers · adopted 2017
- U.S. Suppressor Enthusiasts · adopted 2017
Production
Production years: 2017-present
High-volume production with numerous limited-edition distributor exclusive color variants
Origin
Country of origin: United States
Designer: William B. Ruger (original design lineage)
Notes
The 22/45 Lite uses a tensioned stainless steel barrel inside a ventilated aluminum receiver/shroud assembly, which both reduces weight and improves heat dissipation during extended shooting sessions. The barrel shroud features decorative cuts that also serve as ventilation ports. Multiple limited-edition color anodized finishes (gold, purple, bronze, diamond gray, red, etc.) have been produced as distributor exclusives, making certain colorways highly collectible. The threaded 1/2"-28 muzzle accepts most .22 LR suppressors directly. The trigger is single-action only with a factory pull weight of approximately 5 pounds (22.2 N). The 1:16-inch right-hand twist with 6 grooves stabilizes standard- and high-velocity .22 LR loads. Two 10-round magazines are included. MSRP starts at $759.
Background
The 22/45 Lite has become the de facto standard suppressor host in the .22 LR pistol category, praised by the suppressor community for its lightweight frame, threaded barrel, and reliable cycling with both suppressed and unsuppressed ammunition. The extensive range of anodized color options has created a collector subculture around limited distributor-exclusive runs.