Ruger MK III

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Ruger MK III
Ruger mkiii bull.jpg
The Ruger MK III Target with 5½" bull barrel
Type Pistols
Place of origin United States
Production history
Manufacturer Sturm, Ruger & Co.
Produced 2004–present
Variants See Models
Specifications
Weight 31–45 oz (880–1,280 g)[1]
Length 9–11.12 in (229–282 mm)[1]
Barrel length 4.75–6.88 in (121–175 mm)[1]

Cartridge .22 LR
Barrels 1:16" Right hand twist[1]
Action Blowback
Feed system 10-round magazine [1]

The Ruger Mark III is a .22 long rifle semi-automatic pistol manufactured by Sturm, Ruger & Company. It is the successor to the Ruger MK II, and includes several new features.

Changes from the Mark II[edit]

  • Addition of a visible loaded chamber indicator on the left side.
  • Magazine release moved, from bottom of grip to behind trigger guard.
  • All Mark III pistols with adjustable sights are drilled and tapped for a Weaver-style scope base which ships with the pistol.[2]
  • A new magazine disconnect prevents the pistol from being fired with the magazine removed from the pistol. (See note below)
  • An internal safety lock has been added. Using a key, the safety can be locked in the "safe" position.
  • Shorter tapered bolt ears.
  • A smoothly contoured ejection port profile.

Models[edit]

Mark III[edit]

Stainless steel Ruger Mark III with magazine.

The first lineup is simply known as Mark III. The pistol's barrel is made from steel bar and is threaded into the receiver which is made from steel tube. The barrel is not removable without machining, though. The layout is similar to the Luger P08, although the operating mechanism was originally copied from the Nambu pistol.

  • The high-end model is known as the Hunter. This pistol features a stainless steel frame and comes with either a 4.5-inch, 5.5-inch (a distributor exclusive), or a 6.875-inch fluted bull barrel, fiber-optic front sight, adjustable, V-notch rear sights, and half-checkered cocobolo wood grip. It features multiple safety mechanisms, and includes a visible loaded chamber indicator (The first ever included in a .22 rimfire pistol) as well as internal and external keyed locks provided.
  • The next pistol in the lineup is named Competition. It too has a stainless steel frame and 6.875-inch slab sided bull barrel, and adjustable rear sights; the pistol also has the cocobolo grip with thumb rest.
  • Target is the next Mark III. This pistol has a stainless or blued finish, a tapered 6.875-inch barrel, adjustable rear sights, and black plastic grips.
  • The Bull barrel pistol comes in stainless steel or blued finish. It has a heavier barrel to help the barrel from overheating and to keep recoil down. It has a 5.5-inch barrel and adjustable rear sights.
  • Finally, the Standard Mark III has a tapered barrel, black plastic handgrips and a blued finish. It comes with either a 6-inch or 4.75-inch barrel. It has fixed sights.
RUGER MARK III LINEUP
Catalog

Number

Model Finish Sight Length Approx.

Weight

Suggested

Retail Price

Blued Stainless Rear Front Barrel Overall
Standard MKIII4 Standard * Fixed Fixed 4¾" 9" 35 oz $362.00
MKIII6 Standard * Fixed Fixed 6" 10¾" 37 oz $362.00
Target MKIII512 Bull Bbl. * Adjustable Fixed 5½" 9¾" 42 oz $430.00
KMKIII512 Bull Bbl. * Adjustable Fixed 5½" 9¾" 42 oz $543.00
KMKIII678GC Competition * Adjustable Fixed 6⅞" 11⅛" 45 oz $625.00
KMKIII678H Hunter * Adjustable HiViz Fiber Optic 6⅞" 11⅛" 41 oz $638.00
KMKIII45H Hunter * Adjustable HiViz Fiber Optic 4½" 8¾" 38 oz $638.00

Mark III 22/45[edit]

Mark III 22/45 with 5.5" bull barrel
Mark III 22/45 Lite

The second lineup is named Mark III 22/45. These pistols have a polymer frame, and the steel barrel is installed nearly permanently into a tubular steel receiver. The grip angle emulates that of a M1911.

  • The current high-end model, the Mk III 22/45 Lite, was introduced at the 2012 SHOT Show. The main features include a light-weight aluminum upper receiver, material reduction on the upper receiver for enhanced appearance and further weight savings, a steel barrel that has been threaded ½" - 28 for a compensator or suppressor, and user replaceable grips. Finally, the receiver of the Lite model is drilled and tapped for a Weaver rail section included in the packaging.
  • The previous high-end model is known as the Hunter. This pistol features a stainless steel 4.5-inch or 6.875-inch fluted bull barrel, HiViz fiber optic front sight, and adjustable rear sights. This model was discontinued for 2012.
  • The Target pistol comes in a few different variations. It has a heavier barrel to limit overheating, reduce recoil, and increase accuracy.
    • Stainless steel 5.5-inch barrel and adjustable rear sights (Discontinued in 2012).
    • Blued finish with 5.5-inch barrel and adjustable rear sights.
    • Blued finish with 4-inch barrel and adjustable rear sights.
    • Blued finish with 5.5-inch barrel, fixed rear sights, and replaceable Checkered Cocobolo grips.
    • Several models previously sold as Bull Barrel and Slab Side models had their names changed or were entirely discontinued when Ruger changed their catalog to reflect the Target lineup.
  • The Threaded Barrel models are very similar in configuration to the Target models, but with a threaded barrel for the addition of a compensator or suppressor. These models also feature user replaceable grips and the option of either adjustable target sights or Picatinny rails.
  • Distributor Exclusive models are specially made versions of the Mk III 22/45 released through certain distributors. For the 2012 lineup, these models include:
    • A Target model with a "Water Dog" Brown Digital Camo lower receiver.
    • A Target model with a fluted barrel and adjustable rear sights.
    • A Target model with a fluted barrel and adjustable fiber optic rear sights.
RUGER MARK III 22/45 LINEUP (AS OF JUNE 2012)
Catalog

Number

Model Finish Sight Length Approx.

Weight

Suggested

Retail Price

Blued Stainless Aluminum Rear Front Barrel Overall
P45MK3ALRP Lite * Adjustable Fixed 4½" 8½" 22 oz $469.00
P4MKIII Target * Adjustable Fixed 4" 8" 31 oz $349.00
P512MKIIIRP Target * Fixed Fixed 5½" 9½" 33 oz $389.00
P512MKIII Target * Adjustable Fixed 5½" 9½" 35 oz $349.00
P45GMK3RP Threaded * Fixed Fixed 4½" 8½" 32 oz $439.00
P45GMK3PRRP Threaded * Picatinny Rail None 4½" 8½" 32 oz $439.00
KP512MKIII Bull Barrel * Adjustable Fixed 5½" 9½" 35 oz Discontinued
KP678HMKIII Hunter * Adjustable HiViz Fiber Optic 6⅞" 10⅞" 34 oz Discontinued

See also[edit]

References[edit]

  1. ^ a b c d e "Ruger Mark III". Sturm, Ruger & Co., Inc. Retrieved 8 December 2012. 
  2. ^ The Ruger manual says "NOTE C — Scope mount bases and rings listed will fit all MARK III and 22/45 MARK III pistols. Only the MARK III Target models are drilled and tapped at the factory. The MARK III Standard models must be drilled and tapped by your local gunsmith. (Drilling and tapping instructions available upon request.) As of March 2011 it appears as though Ruger has started drilling and tapping the Mark III Standard model.


External links[edit]