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Ruger

Ruger Mark IV 22/45 4.4" Barrel .22 LR 10+1 Round Black

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Compact Rimfire

Pistol suited for target shooting

10+1 Capacity

A 4.40-inch threaded bull barrel

Fixed Front

Sight and adjustable rear sight

Alloy Steel

A polymer grip frame

Checkered Synthetic

Grips for a secure hold

$349.99
List Price: $359.99
You Save: $10.00 (3%)
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SKU: 40190-736676401901

Overview

Built for rimfire shooters who want a compact, practical pistol for target work and small-game use, this model combines a 10+1 capacity with a 4.4-inch threaded bull barrel for added setup flexibility. The fixed front sight and adjustable rear sight support careful aiming, while the alloy steel receiver and polymer grip frame provide a straightforward, secure feel in hand. Its smaller size and 33.3-ounce weight make it easier to manage in tight spaces or during extended range sessions. For hunters and outdoor enthusiasts who value a versatile .22 LR pistol, it offers a focused feature set without unnecessary complexity.

Why Hunters Choose the Ruger

Compact Size

Lightweight profile support easy handling

Fixed Front

Sight and adjustable rear sight

Threaded 4.4-inch

Bull barrel adds compatibility with

10+1 Capacity

Practical follow-up shots for rimfire

Alloy Steel

Receiver and polymer grip frame

Key Features

  • Compact rimfire pistol suited for target shooting and hunting small game.
  • 10+1 capacity with a 4.40-inch threaded bull barrel.
  • Fixed front sight and adjustable rear sight for precise aiming.
  • Alloy steel receiver paired with a polymer grip frame.
  • Checkered synthetic grips for a secure hold.
  • Blued finish with an overall length of 8.50 inches.

Best Used For

  • Small-game hunters wanting a compact rimfire pistol for close-range field use and easy handling.
  • Target shooters who prefer adjustable sights for deliberate, precise shot placement at the range.
  • Hunters needing a threaded-barrel .22 LR pistol for muzzle accessory compatibility.
  • Users who want a lightweight pistol that is easier to maneuver in tight spaces.
  • Shooters looking for a 10+1 rimfire option with a secure checkered synthetic grip.

Specifications

Barrel Length4.40"
Barrel StyleThreaded Bull
Blade FinishBlued
Caliber.22 LR
Capacity10+1
Front SightFixed
Grip FramePolymer
GripsCheckered Synthetic
Overall Length8.5 in
Rear SightAdjustable
Receiver MaterialAlloy Steel
Weight33.3 oz.
Width1.22"

Pros

  • Compact size and lightweight profile support easy handling in tight spaces.
  • Fixed front sight and adjustable rear sight aid precise aiming and shot placement.
  • Threaded 4.4-inch bull barrel adds compatibility with muzzle accessories.
  • 10+1 capacity offers practical follow-up shots for rimfire use.
  • Alloy steel receiver and polymer grip frame provide a durable, secure setup.

Considerations & Trade-offs

  • The 10+1 capacity is practical for range use and small-game hunting, but it still requires reloads more often than higher-capacity options.
  • The 4.4-inch threaded bull barrel adds accessory flexibility, though it also makes the pistol less compact than a non-threaded setup.
  • The fixed front sight and adjustable rear sight support precise aiming, but the sighting setup is still more specialized than optics-ready configurations.
  • At 33.3 oz. with an 8.50" overall length, it offers a stable feel, but it is not the lightest or most compact choice for all carry or field situations.

Suggested Comparisons

  • Rimfire target pistols
  • Small-game hunting handguns
  • Threaded-barrel pistols
  • Compact .22 LR pistols

Suggested Accessories

  • Cleaning kit
  • Pistol case
  • Thread protector
  • Muzzle accessory

Frequently Asked Questions

What is the magazine capacity of the Ruger Mark IV 22/45?

The listed capacity is 10+1 rounds.

Is the barrel threaded on this model?

Yes. The 4.4-inch barrel is described as a threaded bull barrel, which allows attachment of muzzle accessories.

What sights does this pistol come with?

It has a fixed front sight and an adjustable rear sight.

What materials are listed for the receiver and grip frame?

The receiver is listed as alloy steel, and the grip frame is listed as polymer.

What type of shooting is this pistol described for?

The product description says it is designed for target shooting and hunting small game.