Ruger Mark IV Standard 6"
Sturm, Ruger & Co. · Pistol · In Production · 2016
Also known as: Mark IV Standard 6", MK IV Standard 6", Ruger MKIV Standard 6
Overview
The Ruger Mark IV Standard 6" is a semi-automatic pistol chambered in .22 Long Rifle, produced by Sturm, Ruger & Co.
Specifications
| Weight (empty) | 853 g (30.1 oz) |
| Weight (loaded) | 918 g (32.4 oz) |
| Overall Length | 260 mm (10.24") |
| Barrel Length | 152 mm (5.98") |
| Height | 137 mm (5.39") |
| Width | 30 mm (1.18") |
| Sight Radius | 200 mm (7.87") |
| 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 | 335 m/s (1099 fps) |
| Muzzle Energy | 145 J (107 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 4.75" — Barrel Length
- Ruger Mark IV Target — Target
- Ruger Mark IV Tactical — Tactical
- Ruger Mark IV 22/45 — Grip Frame
Base model
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 40105. MSRP $579. Includes two 10-round magazines. The 6-inch tapered barrel model is the longest-barreled Standard variant and most closely echoes the barrel length of the original 1949 Ruger Standard Auto, which also featured a tapered profile. The additional barrel length provides a meaningful accuracy advantage over the 4.75" model due to the longer sight radius, while remaining lighter than the bull-barreled Target model. The receiver is drilled and tapped for aftermarket Weaver- or Picatinny-style rail mounting. Not available in California or Massachusetts.
Background
The 6-inch barrel length has been a staple of the Ruger Standard Auto lineage since 1949. The original William B. Ruger design featured a 6-inch tapered barrel, and the profile of the Mark IV Standard 6" is the most faithful descendant of that founding pistol. The longer barrel provides the classic Ruger silhouette that was originally inspired by the lines of the Japanese Nambu Type 14 and German Luger P08.