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The Mean Arms EndoMag is a 9mm conversion kit for AR-15 PMAGs allowing you to use a standard lower receiver with a 9mm upper for the ultimate in versatility. It is compatible with Gen 2 and 3 PMAG bodies and simply replaces the internals with no permanent modification necessary. Perfect for training reloads with a full-size rifle that uses the same magazine and magazine pouches without the cost of shooting 5.56. The EndoMag 9mm Magazine Conversion Kit also features a last round bolt hold open and is compatible with Colt and Glock style bolts as well as all types of ammunition including hollow points. Features: Compatible with Gen 2/3 AR-15 PMAGS No modification necessary Toolless assembly Last round bolt hold open Built in ejector Perfect for training Pack of 3 Mean LLC is a manufacturer that specializes in firearm development and product innovation. They are committed to providing engineering support and customer service to clients and customers alike.
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No Questions Yet.
Perfect for AR9 builds
Hate the typical AR9 look. This gives it the classic AR look, and can crosstrain Keep in mind it has LRBHO so you dont need an upper that has it. In fact, if you do, you have to remove the upper LRBHO tab.
Always work!
Simple as pie to install and once you wear them in they run perfectly. Just buy them!
9mm mag
Excellent product with lower cost!!
Easy Conversion
Haven’t had a chance to put any rounds through them but honestly, the Ease of use and install and the fact that I don’t have to commit to a dedicated lower makes this worth wild
Always consistent
I have more than a dozen now and wouldn't use anything else.
Mean Arms Endo magazine inserts
Items were shipped fast, the contents were well packaged, the cost was good and they installed and functioned excellently. Must buy for AR9.
Mean Arms for the win!
My second purchase of endomags. They work awesome and definitely would buy again. Just make sure your bolt doesn't use an extractor like the cmmg model. Extractor is built into the mag.
Sweet mag conversion
Great way to make 9mm conversion to any AR lower. Great service, fast delivery. Thank you.. yeah that’s right modified 20 rounder =) .
PMag conversion
Outstanding overall experience . My first AR9 build was Colt style. I highly recommend these inserts if you're considering a Colt or Glock build. Several rounds with no jams
Have not used it yet but can’t wait till I do!
Satisfied customer always!!
Function great
Bought several and all went together fine except having trouble with one being inserted in my PMag. I own a bunch of these and once had one with an issue - might be operator error!!
9mm Endomag
Great fit for Glock BCG. Ran Snap-Caps through it and they loaded and ejected with no issues. Next, hit the range.
Great idea
These inserts are great, follow the requirements and the very easy instructions and they will work. A dedicated upper and BCG makes the conversion a lot less expensive than buying an insert adaptor or complete new rifle.
Easy to install
Haven’t taken to the range yet, but the install was easy!
Only way to go
if you are tired of swapping lowers and magazines this is the ticket, just use your 15 lower and your p-mag , replace p-mag insides with rifle or pistol same lower same mag body.. don't forget to swap out your stock to brace or brace to stock to keep the alphabet boys away
Awesome
The EndoMag fit perfectly in the gen2 and works flawlessly! Will be snagging a few more to build the stockpile!
Mean arms endomag
The description doesn’t say it, but these ARE preloaded to 10 rounds and can be made to accept 15,20,25,or 30. Haven’t had any issue using endomags. Buying gen 2 30 round pmags out of state and having these delivered saved me $30 instead of buying the restricted state version. Need to glue them after conversion tho.
Endo mag
Endo mags worked well in my recent build. No issues on binary, highly recommended.
Great Alternative To Colt/Glock Mags
Like another person pointed out, you do have to break these in. It took me about 70-80rnds of about 40-50% failure, but after that it's been 100% solid. I've only maxed about 500rnds through one of them and am curious about the longevity as it's all polymer. I'll update accordingly if any fail prematurely.
Awesome conversion kit
Highly recommend this product to anyone! Shipping took lil bit longer then expected but damn this mags are awesome! Easy to install, fits perfect in my gen 2 magpul ar15 mags.
Endomag work!
I was surprised how well this worked in my 2 AR9 pistols. I had no issues with a FoxTrot Mike upper and a custom build of my own. I expected some tweaking and work to get these to run but they were 100% trouble free and reliable. I took a chance with a economy build and I'm happy with these as the cheapest route to an AR9.
Great Product
Very easy to use. They have fed without any issues through 500+ rounds of mixed ammunition.
9mm conversion
Easy installation and works great
Great product, really cool design
This mag conversion is exactly what I needed to make my AR9. It easily converted the Magpul mags over to 9mm and worked great with a standard lower.
Always need more
Flawless Everytime. They are consistent and well made.
Always happy
Always happy with ar15 Discounts! Very cool mag adapters!
Best Solution
So much easier than blocks etc.
9mm Endomags
Out of the 3 Mean 9mm Endomags I bought, 1 had a little trouble feeding. The other 2 ran 25 rnds each just fine.
Quality Product
I use the product in all the 9mm applications. It has been successful.
Mean Arms Endomag 9mm Pmag Conversion
Great fit and design. So far no feeding issues. Would buy again and did!
One out of 6
One out of 6 does not load the chamber.
A better way to run 9 in an AR
This 3-piece combo pack is an even better value for building your own mags as an alternative to CMMG's product. It's exactly the same components as the CMMG mag.
Beware. Not for CMMG banshee
I didn’t do my homework first. Bought this for a CMMG banshee build I’m working on. Did not know there are two types. This is for direct blow back builds and has a built in ejector that fouls with a banshee BCG. I’m going to cut off the extra material and make it work. But if you are looking at these for a banshee they are not the right ones.
Amazing!
This design is ingenious and works quite well in both semi and full. Have run steel case and brass case without any issues. They just plain work! Kudos to AR15Discounts for good price and fast shipping.
Mean Arms EndoMag 9mm PMAG Conversion Kit
It works well so far