Pistol Caliber Carbines have earned a place in your gun safe. Fun, inexpensive and easy to shoot, they even have their own competitions. The Mean Arms EndoMag magazine insert converts your Gen 2 or Gen 3 5.56/.223 PMAG® housing into a 9mm magazine and conversion block mating a standard AR lower to your 9mm upper. This idea is simple, effective and brilliant.
Millions of gun owners bought an AR lower or two during one of the many pre-gun ban panics. If you have an AR lower and a Magpul magazine sitting around, $29.99 and a 9mm upper will turn it into a 9mm training gun that uses mags the same size as 5.56 mags. These mags can be converted back to 5.56 in seconds.
Do you live in a state where your freedom is regulated? No worries. The Endomag has a tab (built in to the back of the insert) which limits capacity to 10 rounds. It is marked at 15, 20 and 30, you can cut the tab to fit your circumstances. They are sold limited to ten rounds. You can always increase the capacity up to a maximum of 30 with a pair of EMT shears or cutters.
All of your AR controls work just the way they are supposed to including last round bolt hold open. Inside an AR magazine, they fit in your existing magazine pouches. No more dedicated lowers or conversion blocks, EndoMags work with Glock or Colt variant 9mm Bolt Carrier Groups. They even have a version that works with the CMMG Guard uppers.
I used the EndoMag with five different 9mm uppers and lowers. They ran well in every configuration. The only compatibility issue is side cocking uppers. They do not work with EndoMag.
The Mean Arms EndoMag Magazine Insert Converts Your AR Lower to 9mm
I have used EndoMag on registered full auto lowers.They work flawlessly, I mean zero malfunctions over 400 rounds. This is a great way to make a 9mm machinegun from your registered AR lower. Change the upper and the buffer and you are ready to go. Shooting pistol steel with a 9mm machinegun is an incredible experience. It will change your life and it is cheaper than .223.
Features the Mean Arms 9mm Magazine Adapter:
- Quickly and easily change calibers from .223/5.56 to a caliber associated with the caliber converter in a MagPul 30-round 5.56×45 PMAGsⓇ (Gen 2 and 3)
- Functions as a magazine!
- No magazine well adapter needed!
- Keep your standard 5.56 Multi Caliber lower receiver!
- Comes fully assembled.
- No tools required.
- Keep all your PMAGsⓇ in use, no need to buy additional or specific 9mm magazines.
- Keep your muscle-memory reload-training the same between calibers! Same magazine, same draw, same feel.
- No learning curve when reloading because it is the same magazine you already use!
- Use most of your PMAGⓇ accessories: i.e. mag pouches, storage racks, decals, caliber indicators, etc.
- Shoots all types of 9mm rounds. Hollow points included.
The firearm used in the video above is a Colt AR-15 semi-auto 9mm Model AR6951. The Colt magwell adapter was removed to accommodate a standard 5.56/.223 PMAG.
Advantages:
- No modifications to your 5.56×45 lower! Changing calibers is now simply a complete 9mm upper for your AR platform. No nuts, no bolts, no drilling, no bull.
- Last round bolt-hold-open feature, just as an AR15 should function.
- Built-in ejector designed to perform under intense conditions.
- You can convert your 5.56×45 PMAGⓇ to 9mm in seconds and easily convert back to 5.56 without damaging your PMAGⓇ. No permanent changes to anything!
Why walk to check targets? AR500 Steel targets from ctstargets.com make range days a lot more fun and give instant feedback from 100 yards away.
I am a big fan of marking magazines to track performance and organize different calibers. The internal changes with Endomag make identification even harder so Gunskins is a perfect solution.
GunSkins AR-15 Mag Skins are pre-cut templates designed to fit around 30-round 5.56 x 45 NATO (.223 Remington) AR magazines. The kit includes pieces for the left and right side of a single magazine.
To cover, protect, and identify your magazines with GunSkins, all you need to do is: clean the surface, peel and stick, add heat to conform, and then trim away any excess material. GunSkins offers camouflage and specialty patterns to choose from.
Just like the Endomag, they are removable with no residue. The waterproof non-reflective matte finish of high-performance vinyl conforms to any shape magazine. They are perfect for the P-mags used here.
This ATFE approved brace has personal position presets (P3 Technology) to allow shooters to select adjustment holes to place the brace in the same desired position each time. Exceptionally lightweight with ambidextrous functionality, the RipBrace is the new state of the art.
ENDOMAG Package Selection
One mag $29.99
Three mags $79.99
You can buy your very own Mean Arms Endomage HERE
New Frontier Armory Parts- 9mm upper with 8″ Match Grade 9mm AR barrel, MP-5 cut bolt and 10oz Blowback Buffer. MagPul Angled Foregrip and magazine. ELF AR-15 Anti-Walk Pins, Mission First Tactical ENGAGE Pistol Grip, H&K MP-5 flash hider, CMMG’s RipBrace, GunSkins AR-15 Mag Skins, Inforce WML light, and Trijicon Reflex sight.
You can find a variety 9mm AR uppers on GunsAmerica
Please elaborate, why don’t the side cocking uppers work with the endo mag. Doesn’t seem like there would be an issue…
I also have a 9 millimeter Luger upper assembly for my AR-15. It’s great for training but I use 9 millimeter Colt Metalform AR-15 magazines with a 9 milimeter Colt magazine well converter. My set up works okay. The bolt does not hold open on the last round with my set up. 9 millimeter is a way better round for self defense over .22 Long Rifle.
My primary round for the AR-15 is .300 AAC Blackout. I only shoot supersonic rounds. I like having a .30 caliber rifle that is very effective to about 300 yards with the right shooter.
I bought one of these and so far it appears to work well–just a bit pricey for a spring,follower and floor plate .