Ruger Mark IV Target 22 LR 10'' 10-Rd Pistol

Description

The Ruger Mark IV Target Model 40173 is a long-barreled .22 LR semi-automatic target pistol featuring an unusually long 10-inch cold hammer-forged bull barrel. This configuration combines a 10+1 capacity, blued alloy-steel construction, aluminum grip frame, adjustable rear sight, fixed front sight, and Ruger’s one-button takedown system. Ruger identifies this exact configuration as Model 40173 / UPC 736676401734.

The defining feature of Model 40173 is its 10-inch bull barrel. The extra-long barrel gives the pistol an overall length of 14 inches and a weight of 46.3 ounces, making this one of the larger and heavier Mark IV Target configurations. The barrel is cold hammer forged with six grooves and a 1:16" right-hand twist.

The pistol is chambered in .22 Long Rifle and has a factory capacity of 10+1 rounds. Ruger includes two 10-round magazines, and the frame incorporates a conveniently positioned push-button magazine release. The magazines are designed to drop free when released.

Model 40173 uses alloy-steel construction with a blued finish paired with a precision CNC-machined aluminum grip frame. Checkered synthetic grip panels provide a traditional Mark-series appearance and can be replaced with compatible alternatives.

For sighting, Ruger equips the pistol with a fixed front sight and adjustable rear sight. The receiver is also drilled and tapped to accept a Weaver- or Picatinny-style rail, providing an easy path for mounting a compatible red dot or other optic.

A major advantage of the Mark IV design is Ruger’s one-button takedown system. Pressing the recessed button at the rear of the frame allows the barrel-receiver assembly to tilt upward and separate from the grip frame without tools, simplifying field stripping and chamber-to-muzzle cleaning.

The pistol retains the Mark-series internal cylindrical bolt design, which keeps the sights and barrel stationary during operation. Ruger notes that this construction maintains permanent sight-to-barrel alignment and provides greater accuracy potential than conventional moving-slide designs.

Safety equipment includes an ambidextrous manual safety that can be converted to left-side-only operation using the included washer. A magazine disconnect prevents the pistol from firing when the magazine has been removed.

Ruger currently lists Model 40173 as Currently Unavailable, with a suggested retail price of $759.00. It is listed as not available in California or Massachusetts.