Foxtrot Mike Products 5" Ultra Light Barrel 9mm AR Pistol with Glock Style Magwell - SBA3 Brace - Primary Arms Exclusive

Manufactured by Foxtrot Mike Products
Manufactured by Foxtrot Mike Products
14 Reviews

In Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 1 business days or less. FFL orders take approximately 10 business days or less if you can provide us an actively receiving FFL location. Due to high demand, there is a limit of 5 FFL items in a 30 day period.

Items that are regulated by the ATF have restrictions and requirements:
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time is approximately 14 to 16 days.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to
•If this firearm includes magazines with a capacity higher than 10 rounds it may not be legal in your state. We will review all order prior to shipping and if your state does not allow the included magazines they will be removed.



Foxtrot Mike Products is at it again with another 9mm AR pistol exclusively built for Primary Arms. For those wanting an even smaller and lighter pistol, this build features a short 5” barrel with a 1:10 twist rate. The FM Products blast diffuser extends past the 5.5” M-LOK handguard and directs all the excess gas and concussion of your shots forward instead of the sides, making this much more enjoyable to shoot at indoor ranges. The upper and lower receivers are machined from billet aluminum allowing for a greater degree of customizability for look and function. The magazine well and upper receiver feed ramps have been machined for use with Glock magazines, yet it is still compatible with standard AR-15 parts like a trigger, pistol grip, and safety selector. The integrated magazine release is much larger and easier to reach than the Mil-Spec alternative allowing for quicker magazine changes. Utilizing a Standard T-style charging handle, you can swap it out for whatever you want. Foxtrot Mike is building some of the most popular AR-9s on the market and Primary Arms is proud to offer them directly to you.

  • Mil-Spec charging handle
  • 5” barrel chambered in 9mm
  • Billet upper and lower receiver
  • Glock compatible magazine well, receiver, and bolt
  • Enlarged magazine release
  • Blow back recoil mechanism
  • Blast diffuser muzzle device
  • Mil-Spec AR-15 lower parts kit
  • SB Tactical SBA3 arm brace
  • 1.3" internal diameter handguard
  • 5.5" M-LOK handguard

This blowback 9mm pistol comes with a smooth pistol length buffer tube and buffer/recoil spring combination tuned to reliably cycle a wide variety of ammunition. The heavy 9mm bolt also helps to increase dwell time and reduce bolt bounce ensuring safe and smooth feeling action. An additional feature with this model is the included SB Tactical SBA3 pistol stabilizing brace. Featuring 5 positions of length adjustability and a nylon strap for securely attaching to different arm sizes. Makes your AR pistol much more usable whether you are shooting one handed, braced against your cheek, or pushing forward against a sling. Feature rich, high-quality, and affordable, Foxtrot Mike Products offer cutting edge solutions utilizing the highest quality materials and manufacturing processes available.

Manufacturers Note: FM Products does not support the following items, using these may void the lifetime warranty associated with our uppers;
  1. FM Products does not support Aluminum Cased ammo.  Blow backs have a much higher pressure spike in the chamber than a handgun.  Using Aluminum cased ammo in a blow back PCC is dangerous and will void the lifetime warranty of an FM Products Upper Receiver.
  2. FM Products does not support import magazines besides OEM Glock magazines.  We recommend Magpul, OEM Glock and ETS magazines only.
  3. FM Products does not support Spikes Glock style lower receivers.  The LRBHO requires consumers to modify the FM Products upper, to make egress for the Spikes LRBHO.  The FM Products upper is cut to the Colt spec, therefore we have no plans to deviate from that.  Modifying your FM Products Upper to accommodate a Spikes Tactical Glock style lower will void the lifetime warranty on our PCC Uppers.
  4. We only recommend Sylvan magwell adapters, as they require no modifications or adjustments to work properly.   FM Products does not support Stern Magwell Adapters as they require regular adjustments to work properly.

See More


Barrel Coating
Barrel Length5.0
BrandFoxtrot Mike Products
Caliber Gauge9mm Luger
Frame SizeAR Pistol
Gas System LengthBlowback
Gas System TypeBlowback
Handguard5.5 in M-LOK Rail
Muzzle DeviceFM Blast Diffuser
Twist Rate1:10
Weight6.44 lbs

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

14 reviews


They got something good going on!!!


It was between this and others and nothing came close to the amount of stuff that came with it for the price it’s outrageous how cheap the price is and it comes with a sba3!!!

Great Gun


I would buy this product again, it’s just amazing ran 150 rounds through it no problem at all. Customer Service Was Awesome On Both Primary Arms & At Foxtrot Mike Products For Questions On This Gun. ⭐️⭐️⭐️⭐️⭐️

How did they do it?

by -

Absolutely amazing little gun. I was initially skeptical due to the price-point. But after reading the reviews and watching countless videos, I decided to check it out. I'm glad I did:
<br>- The fit and finish is amazing
<br>- I have 300 flawless rds thru it so far
<br>- It's easily the funnest gun to shoot that I currently own
<br>- The guys at Foxtrot Mike are very responsive (email/ IG)
<br>- I'm SO impressed, that I'm starting to consider some of their offerings in other calibers.


by -

This gun shoot amazing. I was using Winchester white box 115gr and using magpul magazine 27rounds no problem.

Great BANG for the buck!

by -

Purchased this PCC mainly for a bug out pistol, to go with my Glock 19. I’ve tried Glock 15/24/33 mags, the fit/function is spot on. Per FM, I shot 500 rds of steel ammo (break in period). Steel may be good for a break in, but wouldn’t rely on it if my life depended on it. After the steel I shot two types of brass ammo (500 rds, new/reloads), not ONE issue! At first I was afraid of FM products reliability, however after shooting the brass I was happy! I sighted the pistol in at 50 yards (red dot/iron sights), but did most of the shooting at 25 yards. I was impressed with the grouping, for such a short barrel. This is a fun pistol to shoot, nice design, love the brace, no regrets. Problem: some of the charging handle roll pins backed out every time I shot. I contacted FM, they sent me a new one. FM has been great to deal with, great customer service!

Jammomatic with hollow points

by -

Barrel will NOT feed hollow points. If you want a range to the will will only feed FMJ, then this is for you. If you want something that runs, just buy their lower and build your own upper.

quality product for a low cost.


Very good quality. One thing I didn't like about it is that the blast diffuser prevented screw attachments on the rail (handstop). I ended up replacing the diffuser with a smaller diameter diffuser. No issues with feeding cheap ammo using ets 40 rnd mag, works fine with sig v-crown jhp.
<br>The beefy last round bolt hold open was the selling point when I compared it with other low cost ar9. I wish the side charge was available for the 5" and there were more color options.

Buy this now! Excellent shooter

by -

Soft shooting and super accurate. No FTF through first 200rds. Great purchase so far.

Very impressed but with confidence

by -

I have a mpx, Colt 9ar15 and Ruger pcc already. Looking for something that uses Glock magazines. I checked the internet for reviews and bought this. No break in, about 200 rounds of win white box 115 and reloads. One ftf with a win 115. Used magpul, ETS and Glock magazines. I liked the ETS best, but they did not hold open on last shot. Magpul and Glock did hold open. There is no magazine included with the firearm. I was impressed with the fit and finish. Prior to shooting, I did not clean nor lube the gun and it ran very well. Weather was 30 degrees and sunny. I took my aim point PRO off my SCAR and put it on this gun. It was dead on without any adjustments for shooting steel set up for USPSA. I’m very happy with this gun and plan to purchase another. I will loan it out to my niece and sister in law to shoot when they come to visit. A smaller optic would be nice (like a MRO).

Fun to shoot. Great value. Normal AR charging handle

by -

I immediately took it on to the range and gave it a test with some Blazer 115gr. I did have a jam about 4 rounds in and a total of about 5 jams in the first 100 rounds. As I shot it, it jammed less and less. I also could hear the buffer coming back a second after I shot. Somehow the buffer was getting stuck in the tube. I didn't do anything to remedy it, it just quit doing that. (maybe a break-in period I guess)
<br>The first time I took it out, I didn't oil it or anything, I put it together and shot it. When it jammed, the bullets got stuck between the bolt and the bottom of the barrel. Each time it pushed the projectile into the case a bit. I took it home and oiled it up. I used some 3000 grit polishing pad soaked in oil to polish up the feed area of the barrel. There is no feed ramp on this, it is just a smooth edge all the way around.
<br>I have had it out twice since polishing and oiling without a jam. I have put through about 300 rounds without a jam.



Couple minor problems.
<br>The upper anodizing is off a little, it's more like dark grey rather than black. Not a deal breaker but annoying.
<br>Little bit of play on the upper receiver when the rear takedown pin is removed. Would like to see a little tighter tolerances. Seems to be solid with both pins in. Also there is a adjustment screw in the lower to make it even more solid... but it's made of plastic.
<br>Also check the handguard screws, some of mine were loose and some were overly tight. I used blue thread lock and torqed them evenly.
<br>Trigger on the gun is ok, bit of take up and then a clean break, pretty quick reset. Nothing special, but not bad either.
<br>Mag release is great, and LRBHO works. I added a QD endplate to mine, but one from the factory would be a nice touch.
<br>The gun has some nice features and seems like it is solidly constructed, I think it's a pretty good gun for the money, with just a few mostly minor flaws.

Great gun for the money


Great gun for the money. I cleaned and lubed before shooting for the first time. I bought Magpuls for it, it doesn't come with mags. They are a little tight fitting into the magwell, but they worked great. Had 1 FTE in the first 3 rounds, and no others. Shot about 300 rounds with 4 different mags. Very easy to dial in the new PA Micro red dot with it. Very light recoil. Great gun for the money!

New Truck Gun!!!

by -

Got it Friday. Put 400 rounds thru it on Saturday without a single problem. My new truck gun on Sunday!!! Thank You Primary Arms and FoxTrot Mike's!!!



Love that it is lightweight, accurate straight from the box. No misfires with 8 different brands of ammo in large capacity magazines. Easy breakdown for cleaning. Liked so much, purchased the 7" Foxtrot Mike as well. This company is on a roll!