Are you looking around for something to do for your AR-15? Or are you building a new AR-15? In either case, for the pistol grip, you should check out the Bravo Company Manufacturing (BCM) Gunfighter Mod 3 grip. It definitely makes for a great upgrade to a standard A2 style grip.
![BCM-Grip-Mod3-01](http://santsys.com/s2blog/wp-content/uploads/2014/04/BCM-Grip-Mod3-01.jpg)