The Ruger Mark IV Hunter is a single-action .22 LR semi-automatic pistol with a 6.88-inch fluted bull barrel, 10+1 capacity, and satin stainless finish. The finger-grooved target laminate grips and fiber optic front sight with adjustable rear make it purpose-built for target shooting and small game hunting. 
 

Key Specifications 

• Brand: Ruger 
• Model: Mark IV Hunter 
• Caliber: .22 LR 
• Action Type: Single Action Only (SAO) 
• Capacity: 10+1 rounds 
• Barrel Length: 6.88 inches (Fluted Bull Barrel) 
• Weight: 2.8 lbs (44.20 oz) 
• Safety Style: Ambidextrous Manual Safety 
• Grips: Finger Grooved Target Laminate 
• Sights: Fiber Optic Front & Adjustable Rear 
   

Features 

The 6.88-inch fluted bull barrel adds weight forward and stiffness to the barrel profile, which helps reduce muzzle movement during rapid fire. The fiber optic front sight acquires quickly in varying light, and the adjustable rear sight allows precise elevation and windage corrections. The ambidextrous manual safety works for both right- and left-handed shooters. The satin stainless finish resists corrosion. The Mark IV's tool-free disassembly is a genuine convenience for cleaning. It's a single button press versus the older Mark I/II/III disassembly process. 
 

Usage 

The Mark IV Hunter is well-suited for small game hunting where a .22 LR is appropriate, and it functions well as a dedicated target pistol. The 6.88-inch barrel gets full velocity from .22 LR loads and the sighting system supports precise long-range rimfire work. It's also a cost-effective option for high-volume practice given .22 LR ammunition costs.

Owners of the Ruger Mark IV Hunter .22 LR are consistently positive, with accuracy and the tool-free takedown as the most cited strengths.

Accuracy receives strong marks across reviews. Owners describe tight groups at rimfire distances, and the combination of the bull barrel and adjustable sights gets credit for the consistent results. The ergonomics are well-regarded, with the target laminate grips and grip angle making extended range sessions comfortable.

The Mark IV's push-button disassembly improvement over the older Mark series is brought up frequently and genuinely appreciated by owners who maintain their pistols regularly. Reliability across different .22 LR loads is widely reported as solid.

Aesthetic appeal draws positive comments from collectors and owners who appreciate the satin stainless finish and the traditional Mark series profile.

Common concerns: the price runs higher than many .22 LR pistols, which generates discussion. Most owners conclude it's justified given the build quality and feature set, but budget-focused buyers note less expensive options. A small segment of buyers considers the sporting pistol design less suited to defensive use compared to centerfire alternatives.