I was wondering what grip some of ya'll with bigger hands use. With the grip from a standard RRA lower kit, my finger goes all the way up  to the second joint on my trigger. I tried an Ergo Suregrip at a gun show this weekend and it was a lot better, but it still looked like a little bigger grip might help. I saw a magpul grip on here that had exchangeable parts, does it allow it to be bigger than the suregrip? Any suggestions?

Fobus' G27 is a little bigger than the Ergo

the MIAD grip will probably provide you with the best fit though....but i am not sure on how much bigger it is compared to the Ergo/G27

MIAD grip with the largest front and rear panels

+1 on the G27