Another excellent product from bcm - Bravo Company MFG Gunfighter Grip Mod 3

This and the Magpul K2 grip are my current favorites. It's a difficult selection between the two. It's ergonomic and fits the hand well. It has good texturing and looks great too. While I don't favor putting a bunch of stuff in your grip that could just as easily go in your pocket, it is a well made compartment door that has no rattle. I also like the price as compared with the earlier mods to keep it competitive.