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Mean Arms 9mm Ejectored EndoMag - 3 Pack
$125.99 $79.99 Save 37%
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Most Helpful Positive Review Good,but it needs work.
Good,but it needs work.I love the idea to use a 5.56 mag.Throw in some new guts,and you are shooting 9mm. The problem that I have with it.The ejector is made of plastic like the rest of it.What it needs is a metal ejector.I have had problems with the ejector getting bent and hanging up on the bolt.T...
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Most Helpful Negative Review This 9mm adapter does Not work
This is my 9 mm AR magazine adapter does not work as designed. The issue is the ejector finger on the follower. It gets easily bent out of shape and will not eject, Causing a double feed. The extractor is made out of a composite plastic which does not hold up very well to the impact of the bolt.
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Jrar151979 penn

by Larry Penn, Verified Owner from VA, United States Written on May 17, 2025
It's a great product work fine feed perfect and optic planet has them in stock
Would recommend: Yes
Was it helpful to you? Yes | No

Works as advertised

by Coop, Verified Owner from SC, United States Written on April 30, 2025
Used these in a new ar9 build. Worked right out of the box. Much easier than dedicated Colt mags and no need for magwell insert. Definitely would recommend.
Would recommend: Yes
Was it helpful to you? Yes | No

Great product!

by JB, Verified Owner from AZ, United States Written on March 29, 2025
Received these in a timely manner, thanks Optics Planet. Read the instructions carefully for sure, no big deal. Worked great in new Pmags. I highly recommend that you thoroughly break them in manually by repeatedly pulling back the charging handle while holding down the bolt catch so that BCG slides back and forth smoothly. I did it a bunch of times for each magazine to make sure they were fitting properly. Shot really well without any issues. I really like the look of the full size magazines way more instead of the Glock stick, they look a bit goofy in my opinion, even though I already have one in that platform lol. VERY happy about this purchase.
Pros:
  • Fast delivery
  • look & design, great functionality
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Good stuff

by RGR, Verified Owner from AL, United States Written on March 26, 2025
Easy to install into Magpul 2 or 3 gen and work well with any AR lower
Would recommend: Yes
Was it helpful to you? Yes | No

Excellent product

by Joe, Verified Owner from CA, United States Written on January 30, 2025
These inserts are what you need it eliminates having to find the right magazine for your riffle. Life is a lot easier when you have the right product.
Pros:
  • Having the right product for the right job.
  • Knowing they are compatible with some magazine company
Cons:
  • Having to assemble the inserts yourself
  • Never having enough of them
Best Used for:
  • Anyone needing to ding the right magazine for a AR 9mm
  • Anyone having to find the right magazine for their AR 9mm
Would recommend: Yes
Was it helpful to you? Yes | No

endomags review

by ham, Verified Owner from TX, United States Written on January 13, 2025
good product and service. quick delivery. geats the job done
Would recommend: Yes
Was it helpful to you? Yes | No

Does not work with the Bear Creek Arsenal 9mm Upper assembly.

by ojustme, Verified Owner from MN, United States Written on December 8, 2024
Even though BCA has reviews that this will work with their 9mm upper assembly. Bear Creek Arsenal redesigned their Bolt Carrier Group which does not work with these Endomags. They kept the same part number and reviews but like I said, changed their design. Sort of bait and switch to sell their uppers so I can't blame Endomags. I wished they would work with the BCA upper since I like the look of these mags in my AR but I ended up buying the Stern Defense MAG-AD9 AR-15 Glock 9mm adapter using Glock 9mm magazines and Magpul 9mm magazines. Took to the range and it ran fine with the Stern Defense Adapter.
Would recommend: Yes
1 of 1 found the following review helpful.
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So far so good

by New to the game, Verified Owner from NC, United States Written on November 17, 2024
Putting together a PCC in 9.not satisfied with the mag adapter that doesn't have a last round bolt hold, I don't like the idea of a dry fire! Easy to assemble first time out work pretty good with a couple of jams time will tell. Look for sales on components if you are doing a build. Stay tuned for more
Pros:
  • easy to load
  • No wait for parts
  • Uses common mag
Cons:
  • Multiple feed jam on occasion
  • Plastic parts seem ligjt duty
Would recommend: Yes
1 of 1 found the following review helpful.
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Easy setup and very reliable

by MrJobu, Verified Owner from NC, United States Written on September 15, 2024
Super easy to install into mag shells and revert if necessary. With my FM9 upper on a Ruger AR556 lower, they required no break-in as there was already plenty of clearance. After a few hundred rounds, I have had no issues whatsoever. The plastic ejector doesn't seem to be worn at all yet, but I can see this as being the weakest point over time. One downside has been mentioned many times by others, but you do have to have the mag inserted to clear a chambered round. Not really a deal breaker for me.
Pros:
  • Reliability and ease of use
Cons:
  • plastic ejector, ejecting live rounds
Best Used for:
  • Maintaining AR-15 form factor
Would recommend: Yes
Was it helpful to you? Yes | No

Great parts

by Derek H, Verified Owner from MO, United States Written on July 28, 2024
I love optics planet always quick on shipping always great prices and the free shipping is awesome I bought same setup multiple times and it's been great every time no problems
Would recommend: Yes
Was it helpful to you? Yes | No
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