Micro Roni X Stab Gen 4: Convert Your Pistol Into A PDW

PDW is a concept that has been around for quite a while but only has recently been named as such. Personal Defense Weapon is defined as a class of compact, selective fire, magazine-fed, submachine gun-like firearms—essentially a hybrid between a conventional submachine gun and a compact assault rifle. Most PDWs fire a small-caliber (less than 6 mm), high-velocity centerfire bottleneck cartridge resembling a scaled-down/shortened intermediate rifle cartridge. This gives the PDWs better effective range, accuracy, and armor-penetrating capability than submachine guns, which fire the larger-caliber handgun cartridges.

Micro Roni
Micro Roni without the Glock 17 Gen 5 inserted

Now for us normal folks, selective fire is out of the question. And small-caliber high-velocity rounds are not of great concern (not to mention the terminal ballistics aren’t great), as body armor is not prevalent in the civilian field. Most civilians that own firearms, own handguns. One of the largest issues with handguns is that they do require considerable training to be able to rapidly engage targets accurately; this is exaggerated when talking about longer distances. Rifles take care of both of these issues, taming recoil, muzzle rise and allowing faster follow up shots and allow for steadier aim at longer distance targets. The PDW bridges this gap and the Micro Roni allows you to take your modern service pistol, and turn it into a PDW almost instantly.

Pistols with attachments for stocks and other forms of stabilizing have been around since the early 1900s. From Lugers and Browning High Powers to the Stechkin and Skorpion many inventors have tried to make an effective attachment for a pistol to become more rifle-like. Almost all of these have been failures, with wobbly, uncomfortable stocks and complicated locking mechanisms needing precise fitments. CAA has brought this concept into the 22nd century with the Micro Roni. Open the Micro Roni up and attach your handgun using the rail on the bottom of the frame. Close up the Roni, charge your weapon and you have a much more stable shooting platform that allows for faster follow up shots and easy attachment of accessories such as lights, lasers, grips, and even optics. The optics aspect is a very special part of the Roni. Pistol mounted optics are very expensive even for moderately priced models. CAA takes care of this issue with a standard Picatinny rail mounted on top of the Roni. This will allow you to use any red dot you choose that is able to mount on a Picatinny rail. From cheap Chinese red dots, all the way up to a scope (if you so choose). This is another game-changer when it comes to being able to shoot a pistol at a distance over 50yds or so. This can be done of course with iron sights, and people do it all the time, but to accurately, quickly and repeatedly do this with a handgun is a tall order, and the Roni delivers that and more with just a quick “pop” in of your handgun.

Micro Roni
Folded Micro Roni

To insert your handgun, unload the firearm and let the slide go forward. Lower the door that will sit behind the firearm and insert your pistol into the Roni. Secure the door behind the gun and lock it. Then load the magazine into the gun, make sure the trigger safety flap is covering the trigger and using the charging handle, charge the weapon. Now you are able to strap the pistol brace onto your arm, or us it in any other way that you deem appropriate. The only issue one might have is that the Roni is not conducive to shooting with a suppressor, however, this can be managed with some slight modification and then you can have a suppressed PCC type setup with your regular service handgun. The Roni does come with a “blast chamber” that directs muzzle blast away from your face and ears. This is a nice feature, as handguns are known to be pretty loud especially when running hot ammo.

The Roni is made of an injection-molded glass-filled polymer and feels kind of like Magpul furniture, or any modern service handgun, not like cheesy gun show accessory plastic. It is designed by shooters, for shooters. The charging handle is designed to give you plenty of leverage when charging the handgun and the spare magazine feels really comfortable while also providing you some measure of control of the pistol. This is done by using an “AFG” type of grip, that also happens to hold a spare magazine on the gun. This can be used to get a better grip on the front of the pistol and is totally legal.  That is really tough to beat even with a plethora of great PCCs on the market currently.

One benefit of the Micro Roni is that even with monster loads coming out of your Glock, you can still handle the snappiness. A 10mm Glock shooting nuclear loads through a Roni would be rather pleasant, while doing untold damage to pigs or three-liter bottles. New shooters can be built up to shooting a handgun using the Roni as well, as a rifle is generally easier to control with a new shooter. One doesn’t have to use monster loads through, regular 115gr 9mm stuff is just as fun to shoot as case splitting stuff. Another great option would be to run .357SIG through the gun, as .357SIG is a spectacular round in many ways, but muzzle blast and recoil are pretty SIGnificant. The Roni will tame both of these issues easily and can make a 10mm or .357SIG gun into a relatively easy gun to shoot quickly.

The Micro Roni is available in a few flavors. They have one for Glocks, specifically Glock 17/19/19X/22/23/31/32/45, they have a separate model for Glock 20/21. Smith and Wesson M&P is also taken care of, as well as the SIG P320 series. All models operate very similarly, and all offer the exceptional finger safety flap. Just in case you have a hankering for an American flag version, they have this as well. 

Micro Roni
Micro Roni with compensator

Speaking of new shooters, the Micro Roni has a really nice advantage over just a regular Glock as well. The Micro Roni has a large polymer trigger guard that can flip up and cover the entire trigger area of the Glock. If you have ever trained a new shooter, you’ll know that they often keep their booger finger on that bang switch even when told not to. This product gives a great option for keeping everyone safe during those first sessions. While experienced shooters of Glocks might feel that this is unnecessary, it certainly can’t hurt to have it on the gun, and it’s a very novel idea of dealing with a dangerous potential issue. As far as safeties go, it’s a pretty easy one to use as well, as it can be actuated with your trigger finger on either side of the gun (you’re welcome lefties).  The only left-handed issue that might be seen is that the ejection port of the gun might be very close to your face, some experimentation can be done as well as CAA offering an extended brace for this exact reason.

 Expanding on this subject, there has also been some intellectual property thievery going on with the Micro Roni. We see this all the time in the gun accessory industry, and unfortunately, this is just not the place that you want knockoff products, especially things that directly are affecting what the gun does. Apparently, a company has been selling a copy of the Roni, and this copy (among other things) doesn’t have a trigger guard flap. Clearly this was copied by folks that aren’t shooters, as any real shooter can see that this is a great potential safety device. This issue has been dealt with by the owner of CAA, Moshe Oz by making this statement.

“Lately, a conversion kit that looks like the Micro Roni has surfaced in the US under the name “MCK”; The MCK is unsafe and dangerous to use, it doesn’t include a trigger guard (which already caused an unintended discharge last week) and is not related to CAA at all!
I’m repeating, MCK is not a CAA product!, whoever sells it uses their good name to attract sales which is a clear violation of CAA trademark.”

Powerful words from a person that clearly believes in their product and keeping customers safe in a world with copycats everywhere. Moshe also drafted up this letter to help folks see what the differences are.


Let’s talk about legality for a moment, as this is always on our minds when it feels like the ATF is always days away from dropping some arbitrary ruling on our peasant lives. The CAA Micro Roni takes a Glock pistol inside the product. This means a few things when it comes to the boys in jackboots. Pistols (from the factory) can be “made” into rifles, but rifles (from the factory) cannot be “made” into pistols without paperwork. Before the advent of stabilizing braces, this meant that to use a Roni, you had to do one of two things to maintain legality

  1. Change the barrel to a >16” length
  2. File a Form1 to convert your Glock into an SBR

Now, a 16” Glock barrel in a Roni doesn’t look as awful as you would think, but it’s still pretty awful and not exactly cheap or reliable (Glocks weren’t designed to take a barrel that large obviously). And the thought of converting a perfectly good Glock into something that you have to carry paperwork for, ask the ATF to transport across state lines, and other bureaucracy is not a good idea, not to mention a $200 tax stamp and a waiting period of at the minimum 1 month.

Micro Roni
Micro Roni & Glock 17

So, the Micro Roni is taking advantage of stabilizer madness by putting a pistol brace on the chassis. This allows you to stick your Glock into the chassis, close it up, and use the brace as you would like. If you don’t understand where I’m going with this, it’s a game-changer as far as being able to properly stabilize a PDW type firearm.

Is this the right purchase for you? Well, do you have a Glock, M&P or SIG? Well then ask yourself if you think converting that into a super effective PDW is worthwhile. The answer is probably yes if you’re reading an article like this, and the Roni is simply the best way to accomplish this. With a warranty to stand by, superior technology behind the design of the product and a super easy to use product, the Micro Roni is a great call for anyone wanting to take their boring pistol to a new level of development. There is a reason military have been after a proper PDW type weapon for many years, and this is a really easy way to get that into your hands for a reasonable price and with perfect integration. The Micro Roni is able to be shipped directly to your door, as it is only a gun accessory, and is available for less than the cost of a cheap handgun. It is available online as well as in gun stores and can be purchased by folks that are under 21, which is something that cannot be said for handguns directly from stores.

Just in case you happen to be a dealer or gun store of any size, you can contact CAA and let them know that you’re interested in working with them. The web site is below, and with the recent pistol brace attachment, these things are going to sell like hotcakes!

You can apply through this link:

We are YRS Inc. a worldwide distributor of firearm accessories and tactical gear, and we are an official CAA Industries Distributor in the USA.


Levi Frenchak has years of firearms experience between sporting and responsible concealed carry applications. Levi is a member of multiple pro-second amendment organizations including USCCA, NRA, and just as importantly, his local range. Levi is continuing a legacy of support for our rights by working with his family to increase firearms education and awareness as the lead editor of GunBacker.

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