Saw this on the ole Instagram this morning. its a +2 mag extension for the 9mm shield.apparently it installs in 10 seconds or less with no tools. Gonna pick one and let ya'll know.
I'm running +2 extension from Striker Industries, every time I load the 9 rounds the pistol jams but it works fine with 7 rounds though. I guess I need a stronger mag spring, I hope you don't.