Ruger Mark IV Target | .22 LR | 5.5″ | 40183

The Ruger Mark IV Target is a rimfire target pistol built around a solid one-piece barreled receiver and internal cylindrical bolt construction for repeatable sight-to-barrel alignment. This Model features a 5.50″ bull barrel, adjustable rear sight, fixed front sight and a drilled & tapped receiver for Weaver- or Picatinny-style optics mounting. It ships with two detachable 10‑round magazines and a simple one-button takedown for field-stripping and chamber-to-muzzle cleaning.

For optics, a compact red-dot such as the Vortex Venom (3 MOA) pairs well with the Mark IV Target and is available well under $1,000. Typical applications for this pistol include precision rimfire target shooting and marksmanship training.

Product Specifications

• The manufacturer part number is 40183.
• The UPC is 736676401833.
• The caliber is .22 LR.
• The listed capacity is 10 rounds.
• The barrel measures 5.50 inches and is a bull-style barrel.
• The finish on the metal is blued.
• The front sight is fixed.
• The rear sight is adjustable.
• The grip frame is listed as aluminum (precision CNC-machined).
• The grips are checkered synthetic panels.
• The pistol includes two 10‑round magazines.
• The receiver is drilled and tapped for Weaver- or Picatinny-style rails.
• The firearm includes a magazine disconnect that prevents discharge when the magazine is removed.
• The overall length is 9.75 inches and the weight is listed as 35.6 oz.

The Mark IV Target is built with target-oriented features—sturdy bull barrel, repeatable one-button takedown and an adjustable rear sight—so it serves well as a competition or dedicated practice pistol. Its drilled-and-tapped receiver makes mounting a compact red dot straightforward, while the included magazines and ergonomic bolt stop support efficient range use and routine maintenance.

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