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Micro Roni Stab Review: Best Glock Conversion on the Market?

There's a million Glock carbine conversions out there...how does the Micro Roni Stab stack up? Let's take a look and find out.

    If you’ve ever looked into Glock conversions or stabilizers, you’ve probably seen the same options I have…and been a little unimpressed.

    I’ve tried a large number of these types of things, and the best option I’ve come across has always been the MechTech Glock Carbine Conversionwhich is alright, but I don’t love it enough to recommend it to anyone.  In fact, my recommendation has usually been to just build yourself an AR in a pistol caliber chambering with something like a 9mm Glock-compatible lower ($139.00).

    That was until I opened a little box from Israel containing a CAA Micro Roni Stabilizer Brace.

    micro roni stab
    Sling and sights not included.

    Disclosure: YRS Inc sent me this for free, but please don’t think that has in anyway colored my opinion of the product.  Make no mistake, I realllllly like this thing, but that has nothing to do with the price, or lack thereof.  In fact, in just a minute, you’ll see how little my getting one for free mattered in the end.

    So, what makes this thing so great?  Well, that’s kind of a long story.

    Let’s start with…


    The Micro Roni Stab is something of a hybrid between a Sig-style Pistol Brace and a true carbine conversion like the one from MechTech.

    Instead of taking the slide off like you do with the MechTech, you just attach the charging handle to the rear slide serrations, slide the pistol (in my case a Glock 19, but there are a host of options available) into the brace, and lock the latch at the rear.

    It’s all very simple, and while I wouldn’t want to have to do it quickly, its definitely easier than some of the other carbine conversions out there.  Best of all, you don’t have to disassemble the pistol at all, and you maintain all the same access to the controls that you’d normally have.

    To remove the pistol, you press down on two tabs on the front of the stabilizer, and press a button to release the rear locking latch, and then you just slide the pistol out.

    micro roni weapon release
    The latches on the front are pretty similar to the disassembly latches on Glocks…slide down and then youre good to go.

    From there, just wiggle the charging handle off the rear of the gun, and you’re back to your standard carry piece.

    Everything locks together firmly with nice audible and tactile clicks that leave no doubt about whether or not the pistol is properly seated.  After a few repetitions, I was able to perform the process quickly and easily, even in the dark.

    Once the pistol is latched in, there is virtually no wiggle or “give” and everything feels very solid.

    The Micro Roni is also equipped with a folding stock that allows you to transport it a little easier, but it doesn’t really work well if you want to shoot it with the stock folded.  I don’t really see a way for the design to be changed to allow you to shoot it normally with the stock folded, but it did annoy me a little, even if it ultimately doesn’t make much difference.

    There is also a “safety” of sorts in the form of a little flap that you can push over to cover the trigger on both sides.  I’d like to see a version with either a locking flap, or maybe one that’s a little stiffer, but I probably will never, ever use it anyway so it’s not a big deal for me.

    micro roni safety flap
    I figure about 90% of you have never wanted a Glock safety, but here’s one if you’re into that sorta thing.


    The Micro Roni is made with an aluminum spine that houses the locking mechanism, surrounded by a high-density polymer that feels almost identical to the polymer used in Glock frames.

    The polymer frame has shown no signs of wear after a few hundred rounds, and several days of being thrown around in my range duffel.  Its also survived getting knocked off a loading table, and tossed into the dirt at my local range.  While I wouldn’t recommend doing that with yours, mine survived just fine.

    In fact, the only thing that I really didn’t care for in the construction was the lack of a metal hinge for the folding stock, and the use of polymer for some of the locking surfaces, but again this is kind of a minor niggle.  Nothing about the construction makes me think any of these parts are likely to fail, but I know me.

    I know how rough I am on gear.  One of my range buddies likes to joke that I was cursed by a gypsy, my fiance thinks I’m part Neanderthal.  I’m not sure either of them are wrong.

    spongebob primitive meme
    Actual picture of me around anything breakable.

    Point is, if it can break, I assume it will break, and plastic makes me nervous, even if it shouldn’t.  It was a long time before I got on the Glock hype train (though I am now all aboard on that score) and I expect it will be a bit before I’m fully on-board with a polymer carbine conversion.

    In fairness, I don’t care for polymer AR-15 lowers or kydex holsters either, so feel free to ignore me on this one.

    If you want to add more functionality (or in my case, more things to break) there is a full-length 1913 rail on top, with removable sections of rail on either side of the fore-end where you can slap lights, lasers, coffee grinders, and even CAA’s super-cool thumbrests made specifically for the Roni that I really like the look of, but haven’t tested out *hint hint hint YRS Inc*.

    micro roni thumb rests
    Honestly, I’m not 100% sure how much of a difference it would make, but it looks cool, and I want it. Which is a perfectly reasonable position when it comes to gun stuff.


    So, the whole point of this thing is to help you shoot better.  To do that, step one is to improve on the ergonomics of your handgun…making it easier to hold, aim, control under fire, etc.

    glock 19 profile
    Admittedly, aiming to improve the ergonomics of a brick isn’t exactly a lofty goal.

    So, how does it do?

    Well, first off, the simple fact that you get a stock or a brace (depending on whether you shoulder it, or use it as an actual brace) and room to grip the fore-end like a dedicated carbine makes it much easier to shoot and do so accurately.

    Overall, the Micro Roni Stab is a good half-way point between a true PDW or pistol caliber carbine like the CZ Scorpion EVO ($989.00) and just using the handgun on its own.

    With the stock unfolded, the Micro Roni is right at 18″ long, making it a little on short side for a PDW, but its still a good size where I could see anyone from police officers to folks on executive protection detail being able to move easily in and out of vehicles and other tight spaces.

    Personally, I had a grand time chasing imaginary intruders around my house (with the gun very unloaded with a chamber flag in) and could definitely see it being used for indoor work, as well as for occasions where you need a little more range outdoors.

    micro roni brace

    The Roni brace is comfortable to use, whether you have it shouldered or if used as an actual brace.  I expected to feel like my hands were a little cramped on the small-ish carbine conversion, but it really isn’t bad.

    Legality forbids a vertical foregrip without NFA paperwork, but even so I had no problem gripping the front of the brace during long periods of rapid-fire.

    micro roni front grip
    There is a version of the Micro Roni that comes with a magazine holder up front that doubles as a grip, but the Micro Roni Stab that I tested was just fine.

    My biggest issue with the Micro Roni was actually an ergonomic one…and it was also easily fixed.  The edges of the frame that lie just above where your shooting hand rests are kinda sharp out of the box.  I ended up with a little bit of irritation on my hand near the web between my thumb and trigger finger, right about where you would expect slidebite on say, a 1911 if you grip too high on the beavertail.

    I’m a fairly handy fellow, and I mod almost all my guns.  I possess great swathes of sandpaper, and many, many files.  About two seconds with a file, and 15 seconds with some sand paper fixed the problem, and I would be highly surprised if anyone noticed I’d done anything to the area at all, unless they had another Micro Roni to compare it to.

    I happen to have a spare lying around for reasons I’ll discuss later, and mine feels much smoother and no longer rubs the skin off the back of my hand.  Problem solved.

    Micro Roni grip
    My hand no longer hurts, things are good.


    Here’s the big one…how much does it actually improve accuracy?  I’d heard good things, and it immediately felt like it would improve accuracy, but obviously I have to test things for myself.

    To put the Micro Roni through its paces, I slapped a spare Bushnell TRS Red Dot on it (my preferred cheapo red dot) and went to the range.

    Accuracy Testing Methodology

    Everybody has their own way of doing accuracy testing.  Your way might be better than mine.  I try to do things as fairly as possible.

    I started with a box of ammo I know my Glock likes: Remington Golden Saber 147gr BJHP ($25.00).

    From there, I wanted to test accuracy under a variety of different conditions.  I wanted to try the Micro Roni shouldered vs used as a brace vs freehand shooting vs shooting off a bag.  Then, for shiggles and gits, I decided to break the freehand category into shooting one handed and shooting two handed.  Here’s what I found.

    Glock 19 w/Roni Brace Shouldered (25yds) Glock 19 w/Roni Brace Glock 19 Off Sandbag (25yds) Glock 19 One Hand (25yds) Glock 19 Two Hand (25yds)
    2.25″ 3.06″ 2.35″ 3.55″ 3.11″
    2.38″ 3.29″ 2.56″ 4.12″ 3.48″
    2.13″ 3.48″ 2.02″ 3.68″ (discarding one called flyer) 3.67″
    Avg Group: 2.25″ Avg Group: 3.27″ Avg Group: 2.31″ Avg Group: 3.78″ Avg Group: 3.42″

    So, looking at my sciency-ish data, here’s what I learned…it works!

    My groups with the brace shouldered were basically on par with the groups I had shooting off a bag, which surprised me.  I was a little disappointed that my groups with the Roni used as an actual brace weren’t better, but that may just be my general awkwardness using it that way.

    I don’t have a huge amount of experience shooting with a Sig-style brace, and I feel like that may have affected my accuracy a little.  That being said, the brace still performed a bit better than I shot two-handed which is what you would hope would be the case.

    I also handed it off to a buddy with much more experience using braces like this, and his group was much tighter than mine…almost a full inch.

    All in all, I was very pleased with the extra accuracy I got out of the Micro Roni Brace…so much so that I actually got in touch with YRS Inc and purchased one for myself.  Well actually, I purchased the Micro Roni that YRS Inc sent me for review, at a discount.  That review Micro Roni is currently sitting in my “Things Have Gone Wrong” SHTF bag under my bed, waiting for the apocalypse, or for my next range trip.

    Micro Roni with Glock 19
    I really do like this thing, guys. If you have a Glock, I strongly recommend picking one up.

    Final Thoughts

    So, the Micro Roni improves ergonimics, boosts accuracy, and looks damn cool.  Its not perfect, but its certainly worth picking up if you are looking for a rugged, affordable Glock carbine conversion.  I trust it enough that I’d use it to defend my home and loved ones.  I can’t give a higher endorsement than that.

    So, what do you think of the Micro Roni?  Do you want one?  Excited for the giveaway?  Let us know in the comments below!

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    37 Leave a Reply

    • Commenter Avatar

      I'm a research fanatic and after looking at all the option$ I decided the Micro Roni was the way go. Plus I'm a Glock guy; it made perfect sense. I have two Micros one in .40 and one on .45. The .45 is the house gun with streamlight/laser combo, and the .40 is.....well as you put it, gits and siggles. The only issue I had with one of the accessories was the laser which would not hold an adjustment (the cat doesn't care). Thanks for your article.

      May 14, 2020 5:49 am
      • Commenter Avatar

        Yep, laser sucks bad. Also the charging handle will start slipping on you. It’ll dislodge and come off of your upper about 3/4 inch. You won’t get full battery. I’ve been trying to get a response from CAA and even sent them pictures of the malfunction. No one will get back to me. They just ghost me. I hope other folks make a conversion kit. I’ll never buy anything CAA again. Good luck with yours.

        July 18, 2020 5:40 pm
        • Commenter Avatar

          Component failures like this are the reason that if I want a Glock PDW, I'll run a G17 on a braced Endo Adapter with a milled RDS. Doesn't look as "Tacticool", but just as effective with less chance of something going wrong.

          August 9, 2020 3:22 pm
    • Commenter Avatar
      William Hunt

      Just but a UZI for God sake what is this crap

      April 28, 2020 5:32 pm
      • Commenter Avatar
        William Hunt

        Just buy a UZI for God sake what is this crap

        April 28, 2020 5:36 pm
        • Commenter Avatar

          Just double post for God sake what is this crap?

          March 9, 2022 11:48 am
    • Commenter Avatar
      Robert Wise

      Well, if you want to keep your lasers, lights and perhaps other attachments you bought for your Glock's frame rail, have sighted in,have made holsters for, practiced with, forget them because you can't have stuff on our Glock's rail(s) in the Micro Roni, Or, you can decide, like I did, when I found out that no, it won't accept the #350 Crimson Trace universal green laser light: Forget the Roni. As well you can forget asking CAA about this invconvenient fact about their product BECAUSE THEY WON'T answer your email.

      September 6, 2019 4:37 pm
      • Commenter Avatar

        100%. CAA ghosts all of my emails too. My Microroni is an absolute piece of trash. Charging handle slips off of my G23 slide and the laser is grade A dog shit. CAA sucks fat ass rhinoceros dick.

        July 18, 2020 5:43 pm
    • Commenter Avatar

      I'm all in on the Micro Roni!!!! Where I aim, I hit!!!! Not just using a RGB dot either, If i only use iron sites - still dead on target. Using a Glock 32 and a 9mm conversion barrel - along with the native 357 sig!!!! My friends that had rifles thought that this was just a toy....until they shot it!!!! Now they're getting Roni's as well! A gun range is thinking about getting one for rental!!!!!

      March 30, 2019 8:49 pm
    • Commenter Avatar

      I shot a Glock 18 a few weeks ago in a Roni and it was so much fun I just ordered one for my 17.

      January 7, 2019 3:22 pm
    • Commenter Avatar

      I was really disappointed with the Roni Micro. My groups became twice the size with this Kit with an Aimpoint M4 atop than shooting free hand...

      November 14, 2018 3:00 am
    • Commenter Avatar

      I'm still of the opinion the mechtech is the way to go. Complete glock lowers are available for $75-$125 so you can get the ccu for $500 shipped. So your looking at a $650 dedicated glock carbine and still keep your glock at your side.

      August 9, 2018 12:02 pm
    • Commenter Avatar

      I got one and the thing is cool. My main pistol is a VP9 and the Glock 17 just doesn't work as well for me despite some serious effort, so the Roni has saved my Glock from just sitting in the safe. Presto, my own little subgun. Works great and is a ton of fun, makes the Glock accurate for shooting steel out to 50 yards for me. The cheek weld height is just a bit different from an AR so I had to find a rail height adapter to get my EoTech MRDS at the right level. Only one problem and it was initially a big pain in the ass until I figured it out--with the Glock 17 in the Micro-Roni, you can't rotate it like you do with the pistol to get your thumb onto the mag release for speed reloads because the stabilizing brace snags on your forearm--the brace has to actually go over to the outside of your forearm for the pistol to come to the proper position to push the mag release. The sling likewise hinders this motion unless you sling it low enough to have slack. All it took to get reloads back to roughly the same speed as with the Glock as a pistol was to learn to use the support hand to quickly help get the gun in position (flip the brace over my forearm) before going to get the new mag. Maybe 2/10ths slower, no big deal. But it was a hassle to get used to.

      May 5, 2018 7:03 pm
    • Commenter Avatar
      Wilfredo O

      Is there a way I could get that discount code? Im really interested on buying it!

      March 1, 2018 10:46 am
      • Commenter Avatar
        Eric Hung

        Hi Wilfredo, unfortunately the discount code has ended :-(.

        March 5, 2018 12:06 pm
      • Commenter Avatar

        If you register on their site you’ll get a coupon for 10% off

        September 11, 2019 12:43 am
    • Commenter Avatar

      Can you install a different brace on it? Like an adjustable SBtactical brace?

      February 16, 2018 9:33 pm
      • Commenter Avatar
        Eric Hung

        I think it has a proprietary attachment system for their brace.

        February 20, 2018 11:38 am
    • Commenter Avatar

      Code isn't working...

      January 5, 2018 3:44 pm
    • Commenter Avatar

      I think the Micro Roni original (NFA) can be fired with the stock folded and the stabilizer was tacked on later - that would explain the awkwardness of attempting to fire the stabilizer model while folded. Thanks for the code - ordered one and hope to see it soon!

      November 9, 2017 7:02 pm
      • Commenter Avatar
        Eric Hung

        Great, let us know how you like it!

        November 19, 2017 2:03 pm
        • Commenter Avatar

          I've been looking one over for a while now, but I just couldn't justify $399 (avg gun or pawn shop price) for one. well, I happened to be on YRS website, and saw that they had the G22 version on sale! thanks to paypal credit lol, I just ordered it, and will give an update when I actually get my hands on it. thanks, YRS! :)

          August 4, 2018 3:22 am
    • Commenter Avatar
      Michael Patterson

      Of course I want one! I got a 19 that would look good in it!

      October 23, 2017 11:28 am
    • Commenter Avatar

      Just had them put one together for me for a glock 26 it works well ordered mine from Israel but found out you can get them from the Glock Store

      October 21, 2017 7:51 pm
      • Commenter Avatar

        How did you do that for the 26? Anytime I reach out about that model I’m told it’s not produced anymore. What site did you use?

        November 10, 2019 12:17 pm
    • Commenter Avatar
      David Dungca

      Damm,hook me up ,this is very cool

      August 3, 2017 7:24 am
    • Commenter Avatar
      Justin Mirelez

      I have a micro and now recently the older G2 version. I LOVE my micro roni (NFA version) but the problem is unless you want to seriously bubba the damn thing there is no way to run a suppressor on the micro. The older G2 can run suppressors out of the box up to 1.3 I think, but removing the barrel shroud will house any suppressor I've tried to run on it. They missed a golden opportunity with the redesign.

      August 3, 2017 4:24 am
      • Commenter Avatar

        You've probably already thought of this, but it might work to get a longer threaded barrelthat would extend out past the micro roni. Might leave an unsightly gap between the Micro Roni and the suppressor, I guess.

        August 4, 2017 1:08 pm
    • Commenter Avatar
      Richard Guerrero

      I would love to have one of these bad boys!

      August 2, 2017 10:34 pm
    • Commenter Avatar

      I did it. With the 20% . Thank you. It's on the first page before anything else

      August 2, 2017 4:23 pm
    • Commenter Avatar
      david bronstein

      ordered from yrs website, there was nowhere to put your 20% discount on order form MicRoniStabPewPew

      I did send email, and the 10% they offer is the registered user price shown as a discount.

      August 1, 2017 10:11 pm
    • Commenter Avatar
      Bob Hughes

      Looks like what the mec tec should be. I'd like to win this one. Please, please.,...,,,

      August 1, 2017 10:11 pm
    • Commenter Avatar

      Very interesting! I will have to try it for myself also. It would be great if I won one and I use it on my Glock 19!

      August 1, 2017 5:28 pm
    • Commenter Avatar
      Travis Ramsey

      Looms pretty awesome. Would love to try it out

      August 1, 2017 5:18 pm
    • Commenter Avatar
      Daniel Brantley II

      I want one, hope that make them for the Glock 21. A .45 carbine would be awesome.

      August 1, 2017 4:36 pm
    • Commenter Avatar
      Ray Fleitz

      Would love to have one, as I just bought a Glock 19 last week.

      August 1, 2017 4:35 pm
    • Commenter Avatar

      Great article. Would love to use roni in person. Look forward to the next post!

      July 28, 2017 10:15 pm
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