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Ruger Mark IV Standard 4.75"

Ruger · Pistol

Ruger Mark IV Standard 4.75"

Blowback (semi-automatic) · .22 Long Rifle · introduced 2016

Also known as Mark IV Standard, MK IV Standard, Ruger MKIV Standard 4.75

About the Ruger Mark IV Standard 4.75"

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.

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.

Ruger Mark IV Standard 4.75" specifications

General

Type
Pistol
Action
Blowback (semi-automatic)
Firing mechanism
Hammer-fired
Trigger
Single action
Trigger pull
2.3 kg (5.0 lb)
Calibres
.22 Long Rifle
Magazine capacity
10 rounds
Magazine
Detachable box magazine

Dimensions

Barrel length
121 mm (4.8 in)
Overall length
229 mm (9.0 in)
Height
137 mm (5.4 in)
Width
30 mm (1.2 in)
Weight (empty)
0.80 kg (1.76 lb)
Weight (loaded)
0.86 kg (1.90 lb)
Sight radius
170 mm (6.7 in)

Barrel

Rifling twist
1:16 in (406 mm)
Rifling
Right hand
Grooves
6

Materials

Barrel
Alloy steel
Receiver / frame
Aluminum
Slide
Alloy steel
Finish
blued

Performance

Muzzle velocity (typical)
320 m/s (1050 fps)
Muzzle energy (typical)
133 J (98 ft·lb)
Effective range
50 m

History

Introduced
2016
Production status
In production
Country of origin
US
Designer
William B. Ruger (original design lineage)

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

Safety

  • Ambidextrous manual safety
  • Magazine disconnect

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.

Ruger Mark IV Standard 4.75" variants

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