The Yankee Hill Machine 9mm Bolt Buffer YHM-925-A designed for carbine AR-15 stocks is manufactured from high quality stainless steel and features extra weight and length for 9mm AR’s. The added length helps prevent breakage of the bolt catch. Includes a mil. spec. bumper. The buffer weight is 5.9 oz which places it between the 5.4 oz H3 and 6.08 oz VLTOR A5-H3 buffers.read more
I titled this post “Why you need a 9mm AR15 now! to grab readers attention and there’s a bit of symbology in my message. I learned long ago to take advantage of the market trends I mentioned several paragraphs above. Right now because of market saturation prices on most AR15’s and associated hardware are at their lowest points ever and that can change in an instant. I learned long ago to take advantage of the market and focus on items that can be regulated and eliminated. In the the the year or two leading up to the awful events in Sandy Hook while other shooters were making their AR15’s look pretty I was buying stripped AR15 lowersread more
Palmetto State Armory aka “PSA” has embraced pistol caliber AR’s in a big way. In the case of AR 9mm they offer them in Colt and the subject of this post Glock Magazine compatible style. PSA is currently offering no less than 20 different options of 9mm AR-15 lower receiver. Now that number is slightly misleading because PSA also includes 7 blemished models as 9mm AR lowers for sale. The 13 9mm lower receiver models that remain are actually PSA’s way of having a 9mm AR lower your way. They offer basic stripped 9mm lower receivers, 9mm AR Pistol Lower Receivers as well as variations with different stocks and triggers. Examples would include SOB Brace, KAK SHOCKWAVE, Magpul MOE Furniture and EPT Enhanced Polished Trigger.read more
The Angstadt Arms 9mm AR-15 Buffer Kit provides the correct weight and size buffer for reliable cycling of your 9mm blowback AR-15. Just in case you ask: the standard rifle or carbine buffer isn’t the correct weight for an AR-15 chambered for 9mm Luger. 5.4oz carbine buffer, Carbine buffer spring, Aluminum buffer spacer. A wear-resistant matte black finish on the all-steel Angstadt Arms 9mm AR-15 Buffer Kit protects it from corrosion and surface wear for a long service life. Complete 9mm AR-15 buffer kit gives you everything you need to get your 9mm AR-15 running smoothly. It is compatible with both GLOCK® and Colt® style magazines.read more
JP upgraded their awesome GMR-13 9mm AR rifles with a new lower receiver that features last round lock back, an improved magazine release and a flared magwell. The new model designation is GMR-15. Fortunately JP has made the new 9mm lower available in kit form. The “JP GMR-15 9mm Billet Lower Receiver Kit JPGMR15LRK1” would be my choice for a 9mm AR build today.read more
The Brownells 9mm AR-15 Bolt Carrier Group is specifically designed for use in pistol-caliber carbines, which are a growing trend in the AR-15 world. This bolt-carrier group allows AR builders to custom-make their own 9mm AR. The Brownells 9mm AR-15 Bolt Carrier Group is constructed entirely from a single piece of steel billet and features a pinned weight that can be taken out for compatibility with different buffer systems.read more
Angstadt Arms Jack 9 9mm AR-15 Receiver Set is a dedicated GLOCK® magazine fed 9mm AR-15 matched lower and upper receiver set that features Sharps Brothers iconic skull design. The Jack 9 Includes last round bolt hold open.read more
There are many companies manufacturing or assembling AR-15’s but very few have the knowledge and understanding of the platform like JP Rifles and particularly John Paul himself. The GMR-13 was a great 9mm AR, quite possibly the best. Now with the release of the GMR-15 they are taking the 9mm AR to a new level.read more
JP RIFLES 9mm CARBINE AR15 GMR-13 – Designed from the start with the needs of law enforcement in mind, the GMR-13™ accepts the same G17 pistol magazines as Glock 9mm pistols for carbine/sidearm compatibility and is also available in select-fire configurations. Built on the PSC-11™ upper receiver platform with its dual charging systems, the GMR-13™ readily accommodates those with training backgrounds on either the HK or AR-15 platform. Also available for military and law enforcement, the complete rifle package includes our own JP select-fire trigger setup for precision trigger control in both semi- and full-auto modes. As with all JP rifles, the GMR-13™ comes with parts and service readily available from a trusted US manufacturer.read more
Own the world’s most effective flash hider. The proprietary features eliminate muzzle flash, even on CQB-length barrels. The BLACKOUT® is inherently stronger and more impact resistant than four prong designs, while not being subject to the rapid erosion of closed-ended units. A high strength corrosion-resistant aerospace alloy, and ultra-hard Nitride finish provide the highest level of durability. Military tested and selected. This is the non-mount version for use without a silencer, in 9MM threaded 1/2x36tpi.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 |