RUGER 40149 MARK IV 22/45 TACTICAL 22 LR 10+1 4.40" THREADED BARREL

The Ruger Mark IV 22/45 Tactical (40149) is a semi-automatic rimfire pistol chambered in .22 LR, built for sport shooters, trainers, and suppressor-ready range use. This threaded barrel 22 LR target pistol delivers the grip angle and control of a 1911-style handgun with the economy and versatility of a rimfire platform.

Key Features

• Part number: 40149
• Caliber: .22 LR
• Capacity: 10+1
• Barrel length: 4.40 inches, cold hammer-forged, threaded bull barrel
• Thread pattern: 1/2-28 with thread protector included
• Grip frame: Polymer with checkered 1911-style panel grips, serrated frontstrap, and checkered backstrap
• Receiver material: Alloy steel
• Finish: Black oxide blued
• Sights: Fixed front sight, adjustable rear sight
• Top and bottom Picatinny rails
• Drilled and tapped receiver for Weaver or Picatinny-style optic rail
• Action: Single-action semi-automatic
• Safety: Ambidextrous manual safety
• Weight: 33.3 oz.
• Overall length: 8.50 inches
• Twist rate: 1:16 inches right-hand, 6 grooves
• Includes two 10-round magazines

Special Features

• One-button takedown allows the barrel and receiver assembly to tilt up and separate from the grip frame without tools, making field-stripping and cleaning fast and straightforward.
• The cold hammer-forged barrel produces consistent rifling along the full bore length, delivering tight groupings and long service life across high round counts.
• The 1/2-28 threaded muzzle with a matching thread protector makes the Mark IV 22/45 Tactical (40149) compatible with a wide range of suppressors and muzzle devices currently on the market.
• Top and bottom Picatinny rails let you mount optics, lights, or laser sights without permanent modification to the pistol.
• An internal cylindrical bolt design maintains a fixed and precise alignment between the sights and the bore, unlike traditional slide designs that can shift over time.
• A contoured ejection port and easy-to-grasp bolt ears provide smoother cycling and faster manual operation.
• The push-button magazine release drops the magazine freely for quicker reloads during drills or competition.
• A magazine disconnect prevents discharge when the magazine is removed, adding a layer of safety during handling.

Practical Benefits

• The 1911-style grip angle makes this pistol a natural choice for shooters who train with a full-size service pistol and want to build trigger time at lower cost per round.
• The threaded barrel and dual Picatinny rails give you a ready platform for suppressor host builds right out of the box.
• The adjustable rear sight lets you dial in your zero for consistent performance at your preferred distance without adding aftermarket components.
• The two included 10-round magazines mean you can start shooting immediately without an extra purchase.
• The lightweight .22 LR chambering and familiar 1911 ergonomics make this pistol a practical training tool for newer shooters developing fundamentals alongside experienced competitors looking for an affordable range option.
• Whether you are running drills, building suppressor experience, or simply putting rounds downrange, the Mark IV 22/45 Tactical gives you a platform that grows with your skills.

The Ruger Mark IV 22/45 Tactical (40149) in .22 LR is a proven platform and a smart addition for the sport shooter or trainer who wants suppressor-ready capability, optic mounting flexibility, and a reliable rimfire pistol built to a high standard.