May cause magazine issues - GG&G Mossberg 930 Sling & Flashlight Mount Combo

I was super excited to install this on my Mossberg 930 since there aren't a lot of options for sling attachments. It installs super easy and is easier to add or remove than a barrel clamp option. The problem is my 930 has a factory installed Choate 3 round tube extension. The attachment fits between the extension and the tube threads, which for some reason occasionally causes the magazine spring or follower to get hung up, resulting in rounds being pushed out of the magazine like a clingy parent sending their only kid to college. Removing the attachment solved the problem. GG and G hasn't responded to my inquiry about a fix yet but I'll update if I hear something. It's possible with a different spring or follower it might not be an issue. Also, if you don't have a magazine extension on your 930, then it shouldn't be a problem.