Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart

what bcg's will this work with? haven't found one yet. — 3 Answers

by josh, from VA, United States Asked on February 5, 2020

Name Mean Arms 9mm Ejectored EndoMag - 3 Pack (4.4)
$125.99 $79.99 Save 37%
View Product
Continue As a Guest
Saving...
Sign In or Create an Account (optional)
Why use an OpticsPlanet.com account for my questions and answers?

Having an account with OpticsPlanet.com makes writing questions and answers even better! We’ll save all of your questions and answers in your account, provide you easy access to them, so you can see how the community has responded.

If you’d like to add a question without creating an account, you can proceed with filling out the fields on this form.

Show
Sort by
Filter by
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.
Was it helpful to you? Yes | No
A
Answered by Thegiven, member, from IN, United States, on April 15, 2022

I tried this with a gen 2 Pmag with an Aero Precision AR upper a Trybe defense 9mm BCG with the Trybe Defense 10.5" 9mm barrel, using a PSA lower, 6.5 oz 4" buffer and red Springco buffer spring and it worked well. Shot all 30 rounds and locked back.

1 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by Thegiven, member, from IN, United States, on April 15, 2022

I tried this with a gen 2 Pmag with an Aero Precision AR upper a Trybe defense 9mm BCG with the Trybe Defense 10.5" 9mm barrel, using a PSA lower, 6.5 oz 4" buffer and red Springco buffer spring and it worked well. Shot all 30 rounds and locked back.

Was it helpful to you? Yes | No