Ruger Mark IV Standard 4.75"
Sturm, Ruger & Co. · Pistol · In Production · 2016
Also known as: Mark IV Standard, MK IV Standard, Ruger MKIV Standard 4.75
Overview
The Ruger Mark IV Standard 4.75" is the compact base model of the Mark IV semi-automatic pistol series, chambered in .22 LR. Introduced in 2016 as the fourth generation of Ruger's Standard Auto lineage dating back to 1949, it features a 4.75-inch tapered barrel, fixed front and rear sights, a blued alloy steel upper receiver, and a CNC-machined aluminum grip frame. The pistol holds 10+1 rounds and weighs 799 grams (28.2 oz) unloaded. The Mark IV generation's signature innovation is a one-button takedown system that allows tool-free field stripping by pressing a single recessed button at the rear of the frame, tilting the upper receiver up for removal. This solved the notoriously difficult reassembly that plagued Mark I through Mark III pistols for decades. The Standard model with fixed sights and tapered barrel is the most affordable entry point into the Mark IV line, serving as a reliable and accurate plinker and introductory pistol.
Specifications
| Weight (empty) | 799 g (28.2 oz) |
| Weight (loaded) | 864 g (30.5 oz) |
| Overall Length | 229 mm (9.02") |
| Barrel Length | 121 mm (4.76") |
| Height | 137 mm (5.39") |
| Width | 30 mm (1.18") |
| Sight Radius | 170 mm (6.69") |
| 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 | Aluminum |
| Slide Material | Alloy Steel |
| Barrel Material | Alloy Steel |
| Finish | Blued |
Calibers
- .22 Long Rifle · primary — also known as .22 LR, 5.6x15mmR
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Ambidextrous Manual Safety, Magazine Disconnect
- Features: One Button Takedown, Fixed Front Sight, Fixed Rear Sight, Tapered Barrel, Cold Hammer Forged Barrel, Checkered Synthetic Grips, Drilled And Tapped Receiver, Drop Free Magazines
Variants
- Ruger Mark IV Standard 6" — Barrel Length
- Ruger Mark IV Target — Target
- Ruger Mark IV Tactical — Tactical
- Ruger Mark IV 22/45 — Grip Frame
Service history
Operators
- U.S. Recreational Shooters / Plinkers · adopted 2016
- U.S. New Shooters / Training
Production
Production years: 2016-present
High-volume production; the Mark series is one of the best-selling .22 LR pistol lines in American history with millions produced across all generations since 1949
Origin
Country of origin: United States
Designer: William B. Ruger (original design lineage)
Notes
Model number 40104. MSRP $579. Includes two 10-round magazines. The Mark IV Standard differs from the 22/45 variants by using a traditional aluminum grip frame rather than the polymer 1911-angle grip frame. The tapered barrel is lighter than the bull barrel found on Target models. Fixed sights are simple and durable but not adjustable for windage or elevation. The receiver is drilled and tapped for aftermarket Weaver- or Picatinny-style rail mounting. Not available in California or Massachusetts. The ambidextrous manual safety can be converted to left-side only operation.
Background
The Ruger Standard Auto of 1949 was the very first product of Sturm, Ruger & Co. and the pistol that launched the company. Its silhouette, inspired by the Japanese Nambu Type 14 and German Luger P08, became one of the most recognizable rimfire pistol profiles in the world. The Mark IV Standard with its 4.75-inch tapered barrel most closely resembles the original 1949 Standard Auto in profile and purpose: a simple, affordable, and accurate .22 LR pistol for everyday shooting.