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Ruger Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel

  • Item Number: 40190
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  • Condition: NEW
Ruger Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel
$379.99 $449.00

In Stock with FREE shipping
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Product Description

What's in the Box

  • Ruger Mark IV 22/45 22LR Rimfire Pistol with Threaded Barrel
  • (2) 10 Round Magazines
  • Gun Lock

The Ruger Mark IV™ 22/45™ Pistol (Model 40190) is the ultimate .22 LR handgun for sport shooting, plinking, and target practice. Engineered for shooters of all experience levels, this semi-automatic pistol combines classic 1911 styling with modern polymer frame innovation, delivering comfort, durability, and consistent accuracy round after round.

Firearm Features

  • Simple One-Button Takedown: Effortlessly field-strip the pistol without tools—just press the rear frame button and tilt the barrel/receiver assembly up and off the grip frame for fast, thorough cleaning and maintenance.
  • Threaded Bull Barrel: 4.40" cold hammer-forged, 1/2"-28 barrel with thread protector allows easy attachment of popular muzzle accessories (suppressors, compensators), enhancing versatility on the range.
  • Precision Polymer Grip Frame: Ergonomic, molded polymer frame with serrated frontstrap and checkered backstrap ensures a secure, non-slip hold in any condition. Checkered 1911-style synthetic grip panels add both style and stability.
  • Adjustable Rear Sight & Picatinny Rail: Fine-tune your point of aim with the adjustable rear sight, and mount red-dot optics or tactical lights instantly on the factory-installed Picatinny rail for rapid target acquisition.
  • Reliability & Accuracy: Internal cylindrical bolt construction maintains permanent sight-to-barrel alignment for superior accuracy potential, while the contoured ejection port and robust bolt ears guarantee smooth, reliable cycling.
  • User-Friendly Controls: Ambidextrous manual safety (convertible to left-side only), convenient push-button magazine release, and magazine disconnect safety feature provide secure, intuitive operation.

Firearm Specifications

  • Model Number: 40190
  • Caliber: 22 LR
  • Capacity: 10+1
  • Receiver Material: Alloy Steel
  • Front Sight: Fixed
  • Barrel Length: 4.40"
  • Grip Frame: Polymer
  • Grips: Checkered Synthetic
  • Finish: Blued
  • Width: 1.22"
  • Rear Sight: Adjustable
  • Barrel Style: Threaded Bull
  • Weight: 33.3 oz.
  • Overall Length: 8.50"
  • Height: 5.50"
  • Grooves: 6
  • Twist: 1:16" RH
  • Available in CA: No
  • Available in MA: No
  • UPC: 7-36676-40190-1

Customer Comments & Questions

Customer Reviews

Write a review
(5 out of 5) Ruger SUSH!
by Herman from WALNUT SHADE, MO on February 10, 2026

Pared with an erector can and I have a symbiotic relationship with sound. Love it. It makes me very Happy. Thanks SOSS for a great price.

(5 out of 5) Great price
by Ben from Toledo, OH on May 28, 2026

This is my 2nd Mark IV. Really nice gun for the price, plan to add a suppressor soon.

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