Quarter Circle 10 Rear Charging CLT9MM Builders Kit includes the “bones”- the core components for building your own Quarter Circle 10 9mm AR Carbine or Pistol.read more
Wilson Combat AR9 SBR 9mm AR has been specifically designed for superior reliability and maximum accuracy, while retaining the familiar handling and controls of the AR platform. The AR9 is available with your choice of Glock or Beretta 9mm pistol magazinesread more
The VG6 Epsilon 9mm employs a two-step gas redirection process to produce a soft, low-energy recoil that’s easy on your shoulder. It helps you keep the sights on the target at all times, even during rapid fire, so you can saturate the target with hits – matter how fast you shoot.read more
Wilson Combat AR-9 9mm AR pistol/carbine barrels are made with the same care as their legendary rifle caliber barrels. These superb barrels are perfect for your next build and have been designed to work with most legacy 9mm AR uppers. The 1-10” twist is optimized for long range accuracy and 1” groups at 50 yards are not uncommon with match grade ammunition. These barrels use a 5/8”-24 TPI threaded muzzle for enhanced accuracy and work well with our Q-Comp muzzle brake.read more
Made with 8620 AISI steel and boasting a NIB/Mag-phosphate finish, the Stern Defense 9MM Glock Colt Complete AR-15 Bolt Carrier Group SD BU9 ECHO NiB fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG, Glock magazines and it’s fully compatible with standard AR15/M16 charging handles. Comes fully assembled with all sub-components installed, including firing pin/spring/retaining pin, extractor, and extractor spring. Also included in bolt assembly is a proprietary center and roll pins. Stern Defense 9mm bolts incorporate a new bolt design which caters to single stage triggers with short resets. It also allows use with the JP silent captured spring. This bolt is compatible with the Law Tactical folding stock and the Echo trigger.read more
The MVB Industries AR-15 Pistol Caliber Billet Stripped Upper Receiver is the perfect platform for building your unique, mission-specific, AR-15 pistol caliber rifle/pistol. Made from a high-strength, 7075 T6 aluminum for durability. Mil-Spec, MIL-A-8625 Type III hardcoat anodized finish adds extra strength and delivers superior abrasion-resistance for rugged field use. Precision-machined to ensure drop-in installation of Mil-Spec aftermarket parts.read more
The Rainier Arms AR-15 9MM Billet Receiver Sets are CNC machined from solid billet 7075-T6 aluminum which is 70% stronger than the commonly used 6061 aluminum and finished with milspec hardcoat anodize to a surface hardness of 60 Rockwell. The precision machining of the Rainier Arms billets are well known in the industry. Rainier Arms AR-15 9MM Billet Receiver Sets utilize GLOCK® 9mm magazines.read more
There’s no need to go with a pistol-caliber specific AR lower on your next pistol-caliber carbine build. With the Stern Defense AR-15 9mm Conversion Adapter you have the ability to utilize popular pistol magazines which you may already have a supply of. Stern Defense make two differ models of their Conversion Adapter, one which uses Glock® magazines, and one which uses either Smith & Wesson M&P or Sig 320/250 magazines.read more
The Stern Defense SD Mod 4 9mm Upper Receiver is a complete upper receiver featuring a 4 inch, 1-10 twist, Melonite finish barrel, is free float in a 4in M-LOK handguard attached to a 7075-T6 forged aluminum receiver. On the end of the barrel mounted on the ½-36 threads is a 1.75” long, 1.2” diameter blast can designed to direct the short barreled blast away from the shooter.read more
The Foxtrot Mike Products FM-9 Heavy Pistol Buffer is the correct weight to ensure reliable cycling of any blow-back operated AR-15 pistol action. With its extended length, the FM-9 Heavy Pistol Buffer requires no spacer and helps prevent bolt catch breakage. By installing this buffer, you’ll enjoy smoother function, less felt recoil, and reduced rate of fire from your AR pistol. The FM-9 is compatible with all 9mm upper receivers.read more
Why Would I Want a 9MM AR-15?
There are several key reasons to want to own a 9mm AR-15.
- Duty Sidearm Compatibility – There is a great benefit to having a long gun share the same ammunition as you duty sidearm or everyday carry weapon (ECW).
- Inexpensive 9mm Ammunition – Typically 9MM ammunition is substantially cheaper than it’s centerfire rifle equivalent.
- Reduced Penetration – 9MM ammunition can be a better choice than .223/5.56 centerfire where over penetration is a concern.
- Sound Suppression – 9MM subsonic ammunition is still a formidable round when compared to a subsonic .223/5.56 centerfire cartridge. Think about it. .223/5.56 centerfire at subsonic speeds is a subsonic .22.
- Low Recoil – 9MM in any AR format whether carbine or pistol is easier to shoot than .223/5.56 centerfire in the same gun. 9MM in any AR format is easier to shoot than the same 9mm ammunition in your Glock, Sig Sauer, Smith & Wesson M&P, Beretta or Springfield XD. Easier to shoot equates to accuracy and control. This in turn leads to more rounds on target.
- Light Weight – In most cases a 9MM AR will be lighter than the .223/5.56 centerfire AR. The barrel will be lighter because of the larger bore required for the 9MM bullet. Some of the weight might savings might be negated by the type of 9MM AR lower used. A magazine full of 32 9mm rounds is lighter than 30 rounds of .223/5.56 centerfire. They also take up a lot less space
- Fewer Parts – The 9mm AR-15 is blowback design. This is similar to most .22 semiautomatics, semiautomatic handguns and other 9MM cambered semiautomatic rifles. A 9MM AR15 does not use a rotating bolt and the gas system utilized by the .223/5.56 centerfire counterpart.
- Magazine Capacity – The standard magazines are the 32 round Colts based on the UZI SMG magazines. They hold a lot of rounds in a slim package. The Glock based 9MM AR-15 magazines can be had in many capacities with 17 and 32 being typical. It should be noted that due to local laws shooters may be limited to lower capacities like 5 round and 10 round. Both Colt and Glock magazines can be purchased in those capacities. The capacity benefit diminishes though in this case.
9MM AR-15 Technical Considerations
9MM AR-15 Lower Receiver Wear and Tear
There is a misconception that firing a centerfire pistol caliber cartridge like 9MM Parabellum with the AR-15 platform is somehow “easier on the gun”. This is completely false. The AR-15 by design is meant to use the.223/5.56 cartridges ignited and expending gasses to cycle the action. This gas system combined with the locked rotating bolt do a magnificent job of absorbing the explosive energy of the .223/5.56 cartridge. The 9MM version of the AR-15 being blow-back operation does not use the gas system. This is offset by a heavy recoil buffer. There are many pictures on the internet where poor quality inconsistent 9mm ammunition caused catastrophic failure of the weapon. USE ONLY QUALITY AMMUNITION IN YOUR FIREARMS.
9MM AR-15 History
Colt 9mm Submachine Gun R0635 aka Colt 9mm SMG
The 9mm AR15 might seem like a relatively new AR-15 variant to many newer shooters but nothing could be further from the truth. The 9mm AR15 roots date back to the early 1980’s with the Colt 9mm SMG R0635. The Colt SMG 9mm is a variation of the M-16 rifle that is blowback operated and fires from a closed bolt. It features a Safe/Semi/Full Auto Select Fire Trigger Group. The Colt 9mm SMG R0635 utilized a magwell adapter to accept UZI 9mm magazines. The UZI magazines were modified with a groove to allow the bolt to lock open after the last round.
I read elsewhere that Colt never promoted the 9mm Carbines as they didn’t want the weapons to compete with their own 5.56/.223 Remington versions. This did not prevent law enforcement agencies from adopting the Colt 9MM Carbine.
9MM AR-15 Today
Today modern shooters have made the AR-15 Modern Sporting Rifle the most popular rifle in America. Shooters also tend to never be satisfied with what they have. Once exhausted of typical AR-15 hardware upgrades we tend to look to alternative AR calibers like .22 long rifle, .308 Winchester and pistol calibers. This page is devoted to the 9mm Parabellum version of the latter.
9MM AR-15 Links
9MM AR-15 Barrels | 9MM AR-15 Bolts | 9MM AR-15 Triggers | 9MM AR-15 Magazines | 9MM AR-15 Rifles | 9MM AR-15 Buffer Parts | 9MM AR-15 Upper Receivers | 9MM AR-15 Lower Receivers | 9MM AR-15 Flash Hiders | 9MM AR-15 Sights | 9MM AR-15 Conversion Units | 9MM AR-15 Projects | 9MM AR-15 Technical Information | 9MM AR-15 Index |