RECALL: Ruger Issues Safety Warning For MKIV Pistols

Ruger has just announced a safety recall for their new MKIV pistols. Apparently certain guns have been found to have the ability to fire when the safety is placed between the “safe” and “fire” positions and the trigger is pulled. The potential also exists for the gun to fire when the safety is moved from the mid positition to “fire” after pulling the trigger and not having a round discharge.

Below is the full text of the recall, information on how to identify if your weapon is included and steps to take to have it retrofitted if needed. Follow the links to Ruger’s official recall page.


Ruger recently discovered that all Mark IV™ pistols (including 22/45™ models) manufactured prior to June 1, 2017 have the potential to discharge unintentionally if the safety is not utilized correctly. In particular, if the trigger is pulled while the safety lever is midway between the “safe” and “fire” positions (that is, the safety is not fully engaged or fully disengaged), then the pistol may not fire when the trigger is pulled. However, if the trigger is released and the safety lever is then moved from the mid position to the “fire” position, the pistol may fire at that time.

Although only a small percentage of pistols appear to be affected and we are not aware of any injuries, Ruger is firmly committed to safety and would like to retrofit all potentially affected pistols with an updated safety mechanism.

Until your Mark IV™ pistol has been retrofitted or you verify that it is not subject to the recall, we strongly recommend that you not use your pistol.

How To Determine If Your Pistol Needs The Retrofit

How to find your serial number All Mark IV™ pistols produced prior to June 1, 2017 are potentially affected and therefore are being recalled. This includes Mark IV™ Target, Hunter, Competition, 22/45™, 22/45™ Lite and 22/45™ Tactical models. These models bear serial numbers beginning with “401” (2017 models) or “WBR” (2016 models).

Firearms NOT subject to the Recall

Newly manufactured Mark IV™ pistols will begin with serial number “500.” Thus, if you have a Mark IV™ or 22/45™ pistol with a serial number beginning with the number “5,” your pistol is not subject to the recall.

Firearms That Have Been Retrofitted Already

MKIV Pistols

Finding Retrofit Marking Mark IV™ and 22/45™ pistols retrofitted with the updated safety mechanism are easily identified by the letter “S” in the white safety dot that is visible when the safety is engaged.

Check your Ruger MKIV Serial Number And get more information HERE.


LE – Science – OSINT.
On a mission to make all of my guns as quiet as possible.
Twitter: @gunboxready
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  • Holdfast_II

    First the CCP and now this. Geez.

    Maybe Ruger could replace the stupid ambi safety while they have it in the shop?

    • charlesrhamilton

      I know, right?

    • Steven

      Are you saying no ambi safety, only right hand? As a leftie, I would tend to disagree with that. Right hand people seem only too willing to throw left hand people under the bus every chance they get.

      • Holdfast_II

        Not for everyone, just mine. Problem is, the right side of my hand keeps accidentally engaging it. Apparently there is a Ruger-approved mod to make it right-hand only. Maybe there’s even one to make it left-hand only, which would be cool too.

      • Flounder

        We are super willing. I mean, what’s wrong with you? Shooting all wrong handed! Have you learned nothing from Ian’s suffering on forgotten weapons and inrange? /sarc

        JK man. I get it. But at the same time lefties are only about 10 percent of shooters. That is not a minority. That is an extreme minority, and to cater to an extreme minority is business stupidity, which is why you get all these half steps. They are making an effort but realizing there is no money to justify extensive alterations.

    • pablo4twenty

      I know – i have both!

    • John

      FYI, it ships WITH the plug to make it just one sided.

      • John

        I have not been bothered by the opposite safety switch. It barely grazes my hand when holding it.

  • Tim

    Dag-nab-it, man. Supposed to pick up my new mark IV target tomorrow.

    • Norm Glitz

      Check that SN.

  • Dickie

    Was just about to get one too. Better wait

    • Norm Glitz

      If you buy a new one and the serial number starts with a 5 or higher, it’s already got the fix.

  • John

    So the safety kind of acts like a second trigger, firing the gun when moved to the “fire” position after the “half safe squeeze”?

    • John

      Called them, they say strip any options off the lower and send it in. Won’t send out the parts to fix yourself.

      Damn…should’ve waited.

  • mazkact

    I like that the safety works by pushing up for safe and down to fire. Ruger’s attempt at a Glock like .22 trainer(Sr 22 I think) does the opposite and to me that is just stupid. Is a safety not working unless it is fully engaged really a design flaw ? I’m thinking that not fully engageing a safety is operator error.

  • Louis C

    I registered mine for the recall and the one upside for customers is that you do get a free magazine.

  • Mitch

    This happened to me last time I took it to the range. I figured it was just a hiccup, but glad glad I had it pointed down range. I feel better knowing it wasn’t user error (entirely).

    • Norm Glitz

      Somehow, pulling the trigger when the safety is half engaged seems like the epitome of user error.

      • JLR84

        It also sounds like there is the chance that if the trigger is pulled while the safety is partially engaged, that it may discharged once the safety is turned off.

        > However, if the trigger is released and the safety lever is then moved from the mid position to the “fire” position, the pistol may fire at that time.

  • Mrl

    That’s what happens when they try to rush a gun out after S&W brings out a new take down .22!

    • Ruger Shooter

      The Mk IV was years in the making, total coincidence it came out shortly after the so called ‘Victory’. The design stages testing, machinery retooling and so forth takes a long time. Had my new Mk IV less than a week when the recall was announced; big deal, you just send in the grip frame on Ruger’s dime. In return you get an updated grip frame and a n extra mag, works for me. I am sure Taurus, Remington and a few others would have ignored this issue and just said it was ‘operator error’. I like Ruger’s proactive stance on even small problems, taking care of things promptly.

      • Mrl

        Okay, so every one knows you love Rugers, but a discharge is not considered a small problem in my book. I’m waiting for my S&W Victory to come in and join it’s other 7 S&W I own. I have 2 Rugers, I’m trading my SP101 for the Victory. The SP 101 has the worst trigger I ever felt. Compared to all my S&W revolvers. IMHO.

        • Ruger Shooter

          Have two SP101’s and both are factory stock; both have better triggers than any of the several SW products I have used. Actually tried the Victory when it came out and really did like the feel/balance of it for my tastes. By the way, the Victory has had at least one recall so far, for falling apart.

          • Mrl

            Sorry, get your facts straight. No recall on the Victory. S&W did have a recall on their 22A about 10 years ago though. You must have gotten lucky with your SP101’s, good for you. Glad you liked The Victory!!

  • Rogertc1


  • Disarmed in CA

    Kalifornistan is right! New pistols ARE dangerous! 🙂