Ruger Mark IV 22/45 .22 LR 4.4″ Threaded Barrel 10rd

Ruger Mark IV 22/45 Pistol — .22 LR
The Ruger Mark IV 22/45 is a .22 LR semi-automatic pistol designed for range, plinking, and training. It pairs a 4.40″ threaded bull barrel with a factory Picatinny rail and an easy one-button takedown for field maintenance.

The pistol provides a stable platform for sighting and accessory mounting while delivering the ease of cleaning and maintenance expected from the Mark IV design. Intended for recreational range use and basic training setups, it ships with two 10-round magazines and a thread protector for the barrel.

• 4.40″ cold hammer-forged threaded bull barrel; 1/2-28 thread pattern with thread protector
• Factory-installed Picatinny rail on the receiver for optics or accessories
• Simple one-button takedown for quick field-stripping and chamber-to-muzzle cleaning
• Adjustable rear sight and fixed front sight for sighting adjustments
• Includes two 10-round magazines (two 10rd magazines included)
• Checkered 1911-style grip panels on a precision-molded polymer grip frame
• Magazine disconnect safety and a push-button magazine release on the left side of the frame
• Cold hammer-forged barrel with 6 grooves and 1:16″ right-hand rate of twist

Specifications & Construction

• Caliber: .22 LR
• Barrel length: 4.40″
• Barrel type: Threaded bull, 1/2-28 thread pattern
• Sights: Fixed front / Adjustable rear
• Receiver material: Alloy steel
• Grip frame: Precision-molded polymer with checkered 1911-style panels
• Finish: Blued
• Grooves: 6; Twist: 1-in-16″ RH
• Weight: 33.3 oz
• Overall length: 8.50″

Compatibility & Intended Use

This handgun is built for standard range and training setups. The factory Picatinny rail accepts compact optics and small red-dot sights. The 1/2-28 threaded barrel accepts common muzzle accessories that match that thread pattern. Typical configurations include a primary compact optic with iron sights as backups or a simple range-only setup. It ships with two 10-round magazines for convenient reloading.