Testing the MEAN Arms Endomag in a Guntec AR9 Setup

I recently picked up a Guntec 9mm kit that utilized the colt style magazine setup with the magwell insert. While I loved how the setup shot, I wanted to see if the Mean Arms Endomag would feed it 9mm without any problem. Since there was no videos online specifying if it for sure would work or not, I decided to get the mag inserts and test it myself, and post the findings for others to use.

The whole idea of running the endomag for me is that you still train with the same size mags as you do when you train with a regular AR. This means not having to change your gear and muscle memory retention. You also train with cheaper ammo, and you can train in areas and ranges that are setup for pistol only. As for home defense, you can run a 30 round mag of HP (in attempt to negate rounds going too far in the unfortunate event you miss the bad guy) in a platform you can shoulder and run a light on, so it checks a lot of personal defense boxes as well.