Ruger Mark IV 22/45 Lite Pistol – Model 43959 (.22 LR)

The Ruger Mark IV™ 22/45 Lite is a lightweight, high-performance rimfire pistol designed for accuracy, reliability, and ease of maintenance. Built with a ventilated aerospace-grade aluminum receiver and a tensioned stainless steel barrel, this pistol delivers excellent balance and reduced weight without sacrificing durability.

Engineered for both recreational shooting and training, the Mark IV 22/45 Lite combines the familiar grip angle and controls of a classic 1911-style pistol with Ruger’s proven fixed-barrel design for exceptional accuracy and consistent shot placement.

One of the standout features of the Mark IV series is its simple, one-button takedown system. With the press of a button at the rear of the frame, the barrel-receiver assembly tilts up and separates from the grip frame, allowing quick and tool-free field stripping for cleaning and maintenance.

The pistol also includes an adjustable rear sight, fixed front sight, and a factory-installed Picatinny rail, making it easy to mount optics for enhanced precision. A threaded barrel with a 1/2"-28 thread pattern allows compatibility with popular muzzle accessories, while the ambidextrous manual safety and ergonomic controls ensure comfortable handling for both right- and left-handed shooters.

With its lightweight construction, smooth operation, and legendary Ruger reliability, the Mark IV 22/45 Lite is an ideal choice for target shooting, training, and small-game hunting.

Key Features

• Caliber: .22 LR
• Capacity: 10 rounds
• Barrel Length: 4.40"
• Overall Length: approx. 8.40"
• Weight: approx. 25 oz
• Lightweight ventilated aerospace-grade aluminum receiver
• Tensioned stainless steel barrel with 1/2"-28 threaded muzzle
• One-button takedown for quick field stripping
• Adjustable rear sight with fixed front sight
• Factory-installed Picatinny rail for optics
• Polymer grip frame with 1911-style grip angle
• Ambidextrous manual safety
• Includes two 5-round magazines