New Ruger Mark IV .22 pistol


Ruger Perfects Rimfire – Again: Introducing the One-Button Takedown Mark IV

Sturm, Ruger & Company, Inc. is excited to announce the latest development in the Mark Series line of pistols – the Ruger® Mark IV™. Ruger has long set the standard for reliable, affordable and accurate .22 LR handguns, beginning with the introduction of the Standard Pistol in 1949. Since then, the Standard Pistol has undergone a series of enhancements with the development of the Mark I, Mark II and then the Mark III™ in 2005.

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While the heavily redesigned Mark IV maintains the same classic outward appearance as the Mark III, it incorporates a significant improvement customers will love – a simple, one-button takedown for quick and easy field-stripping. A recessed button in the back of the frame allows the upper receiver to tilt up and off of the grip frame without the use of tools. The bolt simply slides out of the receiver and the barrel can be properly cleaned from chamber to muzzle.

“We are thrilled to be introducing what we consider to be a monumental improvement to this iconic pistol that has been with Ruger from the start,” said Ruger President and COO Chris Killoy. “This one-button takedown alleviates the headache that our Mark III owners are all too familiar with and we anticipate the Mark IV pistols being some of the cleanest rimfires at the range, Killoy concluded.

Other significant improvements include a onepiece grip frame that is precision CNC-machined from a solid piece of stainless steel or aluminum; an ambidextrous manual safety and a redesigned bolt stop for more ergonomic operation. The magazine drops free on release for faster reloads and a redesigned magazine disconnect safety prevents discharge when the magazine has been removed. Internal improvements include changes to the hammer, sear, bolt and firing pin for smoother, more reliable feeding.

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Specific features vary by model, but the legendary, one-piece barreled receiver and internal cylindrical bolt construction remain the same. The robust design ensures permanent sight-to-barrel alignment and higher accuracy potential than conventional moving-slide designs. The Mark IV is compatible with a variety of Mark III aftermarket accessories including sights, scope bases and magazines.

The American-made Mark IV pistol ships with two 10-round magazines.

For more information on the Ruger Mark IV or to learn more about the extensive line of award-winning Ruger firearms, visit or To find accessories for the Mark IV and other Ruger firearms, visit or your local independent retailer of Ruger firearms.

 Sturm, Ruger & Co., Inc. is one of the nation’s leading manufacturers of rugged, reliable firearms for the commercial sporting market. The only full-line manufacturer of American-made firearms, Ruger offers consumers over 400 variations of more than 30 product lines. For more than 60 years, Ruger has been a model of corporate and community responsibility. Our motto, “Arms Makers for Responsible Citizens®,” echoes the importance of these principles as we work hard to deliver quality and innovative firearms.

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5 Responses to New Ruger Mark IV .22 pistol

  1. Tom September 22, 2016 at 9:10 pm #

    I have owned two Ruger 22/45 MkIII pistols, and I have always enjoyed them. They have been reliable and accurate. But the one thing I do not enjoy about them is the very complicated reassembly process, to the point that I avoid it as much as possible. So this new take-down model seems to be a huge improvement in design. Something this Ruger owner will have to seriously consider.

    • Hunter Elliott September 22, 2016 at 9:46 pm #

      Tom, your thoughts on the take down procedure are the same as everyone I know who owns or owned a Ruger MK series of pistols. I am glad Ruger has addressed this.

  2. Tom April 20, 2017 at 8:16 am #

    Just wanted to post an update. Since seeing your review of the Mark IV, I have coveted one. And two weeks ago I sold my 4-inch bull barrel Mark III 22/45 and bought a Mark IV Competition (I wanted the longer barrel and sight radius). From just off my range bag, I was getting sub-2″ groups at 45 feet, and even freehand I was easily able to get 4-inch groups. 300 rounds through it and had just two jams which I attributed to ammo (lead-nose, standard velocity CCI). My former 22/45 didn’t particularly like lead nose rounds either, but it was all I had at the time.

    Over and above the expected Ruger reliability and accuracy, I was so thrilled with the ease of the takedown and reassembly. I now no longer loathe to take the Ruger to the range with the loomed dread of having to clean it afterwards. One click and it’s apart. Quick brush and patches down the bore, a brush to the bolt, put the two back together and with a hook and a snap, it’s back together again. That right there was worth the price!

  3. Tom April 20, 2017 at 8:37 am #

    My only negative on the Mark IV, and it is to my model, the Competition, only, and that has to do with the front sight. You would think on a model that is called Competition that the sights would be better than on the base model. But oddly, the sights are exactly the same, with the typical Ruger all black, fully adjustable rear notch and a simple, large front blade. What is really strange is that on the similarly sized Hunter model, the front blade is replaced with a fibre optic sight. So why didn’t Ruger put a slightly more up-scale front sight on what one could arguably call their top-of-the-line Mark IV model?

    I used some bright red model paint I had and touched up the inside of the front post making it easier to pick up. And I will add that the front post is simply screwed in and fibre optic replacements are available from Ruger’s online store for a reasonable cost.

    • Hunter Elliott April 20, 2017 at 8:59 am #

      I agree, I am getting close to finishing the full review on the Mk IV 22/45 and I would like to see, at least, a better front sight. Ruger does make a fiber optic sight for this pistol as well as Tandemkross so that would be worth the upgrade.
      I hope you are doing well Tom, thanks for your feedback brother.

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