I carry my 26 with the 19/XGrip spare mag. The only thing I don't like about it is that, when shooting it, I can feel the XGrip move slightly. There's no question that I'm holding a 2 piece grip. It doesn't affect my accuracy though, so no harm no foul. I don't have that issue at all with the 12 round OEM mag, but 3 fewer rounds.