Glock MOS. G17 and G19. Coming Soon to the U.S.

Rumor mill engage…  One of our readers sent in the above image detailing what appears to be a number of SKUs that very recently dropped into a distributor database.  The SKUs are for Glock G17 and G19 MOS handguns.  For some background on the MOS, we had published a review from Range Day at SHOT 2015.

Here in the US we have only had access to the G34, G35, G40, and G41 variants (though the G17 and G19 have been available overseas since April I believe).

Personally I’ve never run a pistol with optics.  The idea makes sense from a fast acquisition standpoint, but since I generally carry concealed, I can’t imagine trying to secrete a pistol with a tall sight on it.  Maybe for pistol competition, I suppose.  But even there, I’m not sure if it is cool to run your pistol with optics–can anyone speak to that?  I don’t recall seeing anyone at my local 3-Gun club that does.  Overall I don’t see the practicality for anything other than a dedicated competition gun.

That said, have the ability to easily mount them on a gun without having to engage the services of a machinist is great.  Buying one with that off the shelf versatility does have some appeal to me, though there are certainly some aftermarket mounting options available that use the dovetail.

Has anyone had hands on with ANY of the Glock MOS guns?  What are your thoughts?  What about optics on a pistol?

Tom is a former Navy Corpsman that spent some time bumbling around the deserts of Iraq with a Marine Recon unit, kicking in tent flaps and harassing sheep. Prior to that he was a paramedic somewhere in DFW, also doing some Executive Protection work between shifts. Now that those exciting days are behind him, he has embraced his inner “Warrior Hippie” and assaults 14er in his sandals and beard, or engages in rucking adventure challenges while consuming craft beer. To fund these adventures, he writes medical software and builds websites and mobile apps. His latest venture is as one of the founders of; a search engine for all things gun related. He hopes that his posts will help you find solid gear that will survive whatever you can throw at it–he is known (in certain circles) for his curse…ahem, ability…to find the breaking point of anything.


  • A Glock 19 MOS would be great. Not a big fan of cutting up my slide on the after-market and ruining my warranty.

  • Wayne Morgan

    I carry concealed on a daily basis. I guess, depending upon the sight, it wouldn’t be terribly more difficult to carry concealed under a shirt or jacket. Of course, I’m talking about the mini-red dot sights.

  • Tim U

    I’d love to pick up a G17 MOS, then just need to outfit it with a threaded barrel and optic and be set.

  • Joel

    G19 and G17 MOS makes great sense. A longer sight radius is not needed on an optics equipped pistol. Plus, the Glock factory option is better and cheaper than what a gunsmith does (few gunsmiths offer mounts for many different optics and few offer anything other than duracoat or ceracoat finishing for the machined surfaces). Sign me up for a 17 MOS.

  • KestrelBike

    In 3-gun, you can’t run an optic on your pistol without being kicked into unlimited (Open) category instead of practical (Tactical) (magnified optic on rifle) or factory (Limited) (non-magnified like a red dot on rifle). That I’ve seen, most people compete in Tactical class with some kind of magnified optic on their rifle. These are rules according to 3-gun nation as of 01/01/2016.

    Of course, many people do compete in Open category and typically have fun hosing down stages with saigas with drum mags (and a red dot), and for them an optic on a pistol is a no-brainer if they can afford it.

  • Nicks87

    I really like the RMR on my G17.

    • Doc Rader

      Oh that is not really that much taller at all. Thanks for the pic!

      • Max

        I can comfortably IWB carry the GLOCK 40 MOS with an RMR on it. The sight does not add much height to the gun (which is already quite huge…). However, it carries similarly to a GLOCK 17.

        • Nicks87

          Yeah I don’t CC this one. It’s more of a fun gun but I have shot it in competition. The problem CC’ing this gun is that the tall front sight catches on everything and in certain lighting conditions the RMR is pretty much useless, mainly when shooting from dark areas to a lighted area.

  • Bill

    I don’t believe that the smaller sights would be that difficult to conceal, as soon as holster makers start making quality concealment holster for them. Nearly anything can be concealed with the right rig.

    • NDS

      Many of the quality holster manufacturers have an option now for an “optic cut” when ordering.

      It was an easy modification to a Raven owb and Incog IWB when I first got my RMR on the G17, simple 90 degree cut into the sweat guards and they were good to go.

  • Sianmink

    micro reflex on self-defense pistols is getting pretty popular, for once Glock is reacting quickly to this.

  • ExurbanKevin

    Haven’t played with the Glock MOS versions, but I have run a Suarez International Glock 19 through one of his courses.
    The red dot, when co-witnessed, acts pretty much like a fiber optic at close ranges. Where it really shines (pun intended) is at longer (25 yds+) distances, where it REALLY helps with accuracy.
    Regarding size, keep in mind the two most critical dimensions for concealablility are thickness and weight. Height (distance from grip to top of slide) is third, because guns with longer grips tend to print more. If the red dot doesn’t add to the thickness and all the height is added to the top of the slide, it doesn’t really affect how concealable a gun is all that much.

  • NDS

    Carried an RMR-equipped G17 AIWB for years. Used a lightly modified G-Code Incog, there is no difference whatsoever between concealing that and my non-RMR’d G19. The RMR doesn’t extend past a dimension you notice while carrying – typically barrel length, gripframe length, and slide / beavertail height. The weight is negligible.

  • David

    How do pie a corner? Seriously. Once the gun tilts, even a little, you lose the dot, unless the gun is perfectly level, and aligned you lose the dot, whereas the sights are still there as a reference. A flash sight picture can still get you good hits even without perfect sight alignment, but the RDS obstructs the sights when you’re not perfectly aligned.

    I ran an RMR for a few months and I really liked how much easier it made longer range shots, but after 4 months or so, I yanked it and put back a good set of night sights.

  • tazman66gt

    So, by the pic the 17 and 19 will have the same barrel length, so all you are getting is a bit shorter grip?

    • Nicks87

      I noticed that too. Typo? Photoshop?

  • Michael Bane

    On SHOOTING GALLERY we’ve been exploring the rise of reflex sights on defensive pistols for the last 4 seasons. Interestingly enough, the impetus came NOT from competition shooting, but from the high-end military/LEO training community. Generally Kelly McCann gets the nod as the first major trainer to talk about going to the red dot on the pistol as well as the carbine, but it was Gabe Suarez at Suarez International who took the ball and ran with it.

    A friend of mine who is a top tier trainer in his own right told me that he had his highest scores ever on the grueling Rogers Shooting School computerized drills running a Glock with an RMR (BTW, if you haven’t shot at Rogers, you owe it to yourself…it is a 2000 round nightmare week!).

    I am in the process of making the changeover. Right now my EDC is a G26 with an RMR in a Blade-Tech OWB “Eclipse.”

    The overwhelming advantage of the red dot optic is on longer distance shots. Sadly, in our “fundamentally transformed” America, those shots may well be necessary.

    Michael B

    • Doc Rader

      Super helpful. Thanks!

    • Nicks87

      Michael Bane you are quickly becoming a national treasure in the shooting world. An RMR on a glock 26 is a awesome idea and I can’t wait to see it in action.

      • Michael Bane

        Hey, ya gotta try it to see if it works! +2 basepad gives me a full grip, which helps with the shooting. Have not found the high front sight to be an issue in the holsters I’ve tried (Vedder, Bravo Concealment, Comp-Tach, SHTF). Your mileage may vary. For the record, Glock is not a sponsor of any of my shows; Trij is not a sponsor, but I get the occasional deal. Blade-Tech’s founder, Tim Wegner, is a close personal friend for many years and I’ve been using Blade-Tech kydex since he stamped them out in his garage.

    • heglock

      I’ve been shooting a lot lately comparing a G19 with irons to a G19 with an RMR. (I had the slide milled to accept the RMR 2 years ago) 0-10yds there has been virtually no difference in match scores or speed to the first shot. But I have gained 14%-28% gain in performance at longer distances. Accuracy and speed to deliver an accurate shot.

  • Lance

    Fun for the range not durable as iron sights for combat!

    • B. Young

      with the cowitness IRON tall silencer sights it really doesn’t matter.

  • Marmot

    Your glands will have a big problem trying to secrete a pistol under any circumstances.

    • Nicks87

      Sorry that one went right over my head.

      • Cymond

        (of a cell, gland, or organ) produce and discharge (a substance):
        “insulin is secreted in response to rising levels of glucose in the blood”
        synonyms: produce · 
        discharge · emit · excrete · release · send out

    • Edeco

      Then be all bent out of shape :S

  • Chris laliberte

    I picked up a C.O.R.E M&P9 PRO, and the sights had been adjusted for someone who pushed his gun right. Having the ability to put an RMR onto it made correctly zeroing the rear notch much easier. However, I struggled with the red dot–which surprised me since the red dot is so obviously superior to irons on the AR. The dot moves much more in your sight picture than does the front sight–I think perhaps having the two points of reference, front and rear sight, stabilizes something–it’s kind of like short sight radius versus longer sight radius, with the red dot basically being an infinitely short sight radius–it seems to really exacerbate the way the dot floats around. I found this made the RMR even worse at longer ranges, for me. It was almost like shooting the AR long distance offhand with a magnified optic, compared to a red dot–optic is worse, because the reticle appears to move around much more due to the magnification, and so your muscle memory of how to correct the sight picture is skewed, and you end up overcompensating. I suppose it’s just a matter of getting used to it, but I couldn’t tell that there was much in the way of improvement over the irons for me, so I wasn’t drawn to putting in the training time to switch over.

  • LV-426

    Well there goes everything “EXCITING AND NEW” from Glock @ SHOT 2016.

    • Jason Lewis

      You know 50% of viewers have no idea who that picture is of. 🙂

      • KestrelBike

        The Looooooveeeee Boooooaaattttt

  • hydepark

    If these are the same price as the standard option, it’s a good / free way to shave ~1.5oz off the slide to start with. I personally think the Geissele “6 second mount” is a better option to mount Micro Red Dots, but I don’t plan on putting a $600++ MRDS on a $500 gun either way.

    Does anyone know what the limit is to how light a Glock 17 slide can be before reliability suffers? Or better yet, what structural areas are more or less important to slide integrity / lifespan?

  • michael escamilla

    Looks like a sku from ellet brothers

  • Edeco

    Come on 17L MOS with threaded extension!

  • Back in the day, I put one of the first C-More rail sights on top of a Lew Horton ‘Heavy Hunter’ S&W magnum revolver – for hunting and target shooting. It was fine for that.

    But, even with practice, I had real difficulty in anything like a rapid acquisition of the red dot in the reflex sight when held out at arm’s length, Weaver style. It’s nothing like an Aimpoint on a carbine.

    You’ll have to move and twist that pistol around out there to find the dot in that tiny window. It will mostly just look empty. Maybe a better way would be to start way in close, find the dot, and them present the pistol forward evenly before firing. Or, co-witness with the iron sights first and then transition to the red dot. Either way, it is accurate once you have found and centered that tiny dot, but muscle memory cannot achieve this for you without intense, and I suspect sustained, practice.

    This kind of optic on a defensive-use pistol could be a mistake. It will require both valuable time and your critical attention away from the threat and onto the plane of the optics. Good for hunting and target shooting, maybe competition, but I feel these would be wrong for defensive use. Your Mileage May Vary

  • Lyle

    When I started getting into studying this pretty heavy, nearly 20 years ago, people were already using Aimpoint Comp sights on their auto pistols. Check out any Blue Press, for example, from the late 1990s and you’ll see. So this ain’t exactly a new concept. I’d bet it goes back a lot farther in time than that, even. It’s just that Glock is now actively accommodating it, which is cool.