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Q&A for Mean Arms 9mm Ejectored EndoMag - 3 Pack — 18 Questions & 27 Answers

Name Mean Arms 9mm Ejectored EndoMag - 3 Pack (4.4)
$125.99 $79.99 Save 37%
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Q
Onegunonly, member, from MI, United States, asked on August 02, 2019

Anyone successfully using these with 9mm PSA (with Hybrid bolt) upper?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on September 20, 2019

These should work with your upper.

9 of 10 found the following answer helpful.
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Q
josh, member, from VA, United States, asked on February 05, 2020

what bcg's will this work with? haven't found one yet.

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on February 20, 2020

It should work with any standard 9mm bolt carrier group. Please email us at techsales@opticsplanet.com with 9mm bolt carrier groups you have attempted to use with these magazines as Mean Arms specifically states:

"The new EndoMag is a magazine insert that converts your Gen 2 or Gen 3 5.56/.223 PMAG® housing into a 9mm magazine to use with a standard AR lower and 9mm upper of your choosing with a Glock or Colt variant 9mm BCG"

0 of 1 found the following answer helpful.
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Q
Bean, member, from AZ, United States, asked on October 12, 2021

Do they hold 30 rounds of 9mm?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 20, 2022

Yes the Mean Arms 9mm EndoMag holds 30 rounds of 9mm.

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A
Answered by TheAnalyst, member, from AZ, United States, on February 25, 2024

Although this kit allows for different sizes, you decide how many rounds you want to carry. There are sections on the inside feed lip that you have to trim from 10, 15, 20, and 30. Hope that helps answer what you want to do.

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Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on September 20, 2019

These are the standard version.

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Manufacturer Answer
A
Answered by Mean Arms, Manufacturer from GA, United States, on July 09, 2025

This may be a barrel issue based on your description. Please contact sales@meanarms.com with an image of your barrel entry and an image of the face of your bolt. We can quickly ascertain the issue and assist you with these images.

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Q
Raziel Providence, member, from AK, United States, asked on December 04, 2024

Can i use this with PSA 9mm bolt carrier?

Manufacturer Answer
A
Answered by Mean Arms, Manufacturer from GA, United States, on July 09, 2025

With regards to our EndoMags and ExoMags we have always had good luck with the PSA 9mm bolt carrier. You may need to do some easy fitment techniques to make sure the ejector on our product functions correctly. If you have any questions, we have excellent technical support and numerous guides, we can send via email to assist you with setup.

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Manufacturer Answer
A
Answered by Mean Arms, Manufacturer from GA, United States, on February 05, 2025

All Endomag units ship in a 10-round capacity. They can be adjusted up to 30 round capacities by the end user in the event their home state allows higher capacity usage. The instructions are on the package and easy to follow.

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Q
Almaddle, guest, from TN, United States, asked on March 30, 2022

Am I buying just the mag insert or the complete magazine with mag insert?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on April 06, 2022

The Mean Arms 9mm EndoMag - 3 Pack is just the magazine insert. The magazines are not included.

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Q
Todd, member, from KY, United States, asked on January 06, 2022

Does this have the ejector on the insert?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 20, 2022

Yes these Mean Arms 9mm EndoMags have ejectors.

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