Ruger Mark IV 22/45 Lite | .22 LR | 4.4″ TB | 10rd | 43956

The Ruger Mark IV 22/45 Lite is a rimfire semi-automatic pistol built around a lightweight aluminum receiver and a polymer grip frame. It features a 4.40" cold-hammer-forged, 1/2-28 threaded barrel, adjustable rear sight, factory Picatinny rail and two 10-round magazines. The pistol accepts a Shield/RMSc footprint; a compact Shield RMSc red-dot pairs well and is commonly available for under $1000. Typical applications include target/precision rimfire training and recreational plinking.

Product Specifications

• The caliber is .22 LR.
• The barrel length is 4.40 inches and is cold hammer-forged for consistent rifling.
• The barrel style is threaded with a 1/2-28 thread pattern.
• The action is semi-auto.
• The magazine capacity is 10 rounds and two magazines are included.
• The receiver material is aluminum with a black anodized finish.
• The frame material is polymer with checkered 1911-style grip panels.
• The sighting system includes a fixed front sight and an adjustable rear sight.
• The pistol features an ambidextrous manual safety that can be converted to left-side only with the included washer.
• The optic footprint is SHIELD/RMSc and a Picatinny rail is factory-installed for mounting optics or accessories.
• The overall length is 8.4 inches.
• The weight is 25 oz.
• The twist rate is 1:16" RH with 6 grooves.
• The pistol includes two 10-round removable magazines and a magazine disconnect feature.
• The UPC is 736676439560.

The Mark IV 22/45 Lite balances low weight and practical ergonomics with proven rimfire accuracy. The simple one-button takedown makes field-stripping and maintenance straightforward, while the threaded barrel and Picatinny rail provide flexibility for optics and muzzle accessories. Overall, this pistol is well-suited for precision rimfire training and recreational target shooting where controllability and accuracy matter.

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