1. Firearms
  3. Handgun Semi-Auto

Ruger Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch Threaded Barrel

  • Item Number: 40190
  • /
  • View More Items by Ruger
  • /
  • Condition: NEW
Ruger Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch Threaded Barrel
RUGER Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch Threaded Barrel
$354.99 $449.00

Limited-time Deal
In Stock with FREE shipping
  • TAURUS TX22 22LR 4.6` BK 2X22 RDS RFX11

    Taurus TX22 22LR Semi-Auto Pistol with Viridian RFX-11 Green Dot
    $499.99

  • KELTEC P17 22LR PISTOL WITH 16 ROUND MAGAZINE TAN

    Kel-Tec P17 22LR 16-Round Semi-Automatic Pistol with Threaded Barrel Extension Tan
    $219.99

  • SMITH AND WESSON MP 22X 22LR WHITE DOT SIGHTS THUMB SAFETY 4.1 IN 20RD

    Smith & Wesson MP 22X 22LR Optic Ready Semi-Auto Pistol with Manual Thumb Safety
    $499.00 $399.00

  • RUGER LCP II 22LR BLACK PISTOL 2.75 IN BBL

    Ruger Lite Rack LCP II 22LR Rimfire Pistol
    $439.00 $349.99

  • FNH FN 502 TACTICAL 22LR FDE/FDE 15RND AND 10RND

    FN FN502 Tactical 22LR Optic Ready Rimfire Pistol with FDE Finish and Threaded Barr
    $619.00

  • WALTHER PPQ 22LR PISTOL WITH 5 INCH BARREL AND 12 ROUND MAGAZINE

    Walther PPQ 22LR Pistol with 5 Inch Barrel and 12 Round Magazine
    $479.99

  • RUGER MARK IV 22/45 LITE 22LR PISTOL

    Ruger Mark IV 22/45 Lite 22LR Rimfire Pistol with Black Anodized Slide Finish
    $739.00 $579.99

  • KELTEC P17 22LR 16-ROUND SEMI-AUTOMATIC PISTOL

    Kel-Tec P17 22LR 16-Round Semi-Automatic Pistol
    $234.99

  • RUGER MARK IV 22/45 TACTICAL 22LR

    Ruger Mark IV 22/45 Tactical 22LR with Threaded Barrel
    $659.00 $529.99

  • WALTHER P22Q SPORT BLACK 22LR

    Walther P22Q 22LR Rimfire Pistol
    $329.99

  • WALTHER P22Q SPORT MILITARY 22LR

    Walther P22Q Military 22LR Rimfire Pistol with OD Green Frame
    $329.99

  • KELTEC P17 22LR 16-ROUND SEMI-AUTOMATIC PISTOL WITH GREEN FINISH

    Kel-Tec P17 22LR 16-Round Semi-Automatic Pistol with Green Finish
    $249.99

  • CCI 22LR 40 gr Segmented Hollow Point Subsonic 50/Box

    CCI 22LR 40 gr Segmented Hollow Point Subsonic 50/Box
    $7.49
    ($0.15 / round)

  • CCI 22LR 40 gr Lead Round Nose Standard Velocity 100/Box

    CCI 22LR 40 gr Lead Round Nose Standard Velocity 100/Box
    $13.99 $10.99
    ($0.11 / round)

  • CCI 22 LR 45 gr Lead Round Nose Clean-22 Suppressor 200 Round Carton

    CCI 22 LR 45 gr Lead Round Nose Clean-22 Suppressor 200 Round Carton
    $37.99 $25.99
    ($0.13 / round)

  • Winchester 22LR 40 gr Copper Plated Super Speed Round Nose 100/Box

    Winchester 22LR 40 gr Copper Plated Super Speed Round Nose 100/Box
    $10.99
    ($0.11 / round)

  • Remington 22 LR 40 gr Golden Hunter Hollow Point 100/Box

    Remington 22 LR 40 gr Golden Hunter Hollow Point 100/Box
    $8.99
    ($0.09 / round)

  • CCI 22 LR Shotshell 31 gr #12 Shot 20/Box

    CCI 22 LR Shotshell 31 gr #12 Shot 20/Box
    $11.99 $7.99
    ($0.40 / round)

  • Winchester 22LR 45 gr Copper Plated Round Nose Super Suppressed 100/Box

    Winchester 22LR 45 gr Copper Plated Round Nose Super Suppressed 100/Box
    $14.99
    ($0.15 / round)

  • Remington 22LR 33 gr Truncated Cone Hollow Point Yellow Jacket 100/Box

    Remington 22LR 33 gr Truncated Cone Hollow Point Yellow Jacket 100/Box
    $14.99 $11.99
    ($0.12 / round)

  • Winchester 22LR 40 gr Power-Point Copper Plated Super X 100/Box

    Winchester 22LR 40 gr Power-Point Copper Plated Super X 100/Box
    $11.99
    ($0.12 / round)

  • Browning 22 LR 40 Gr Lead Round Nose Pro22 Rimfire 100/Box

    Browning 22 LR 40 Gr Lead Round Nose Pro22 Rimfire 100/Box
    $14.99
    ($0.15 / round)

  • Federal 22LR 25 gr #12 Shot Game-Shok 50/Box

    Federal 22LR 25 gr #12 Shot Game-Shok 50/Box
    $16.99
    ($0.34 / round)

  • CCI 22LR 40 gr Lead Round Nose Pistol Match Precision 50/Box

    CCI 22LR 40 gr Lead Round Nose Pistol Match Precision 50/Box
    $15.99 $12.99
    ($0.26 / round)

Product Description

What's in the Box

  • Ruger Mark IV 22/45 22LR Rimfire Pistol with 4.4 Inch 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.

Back to top