Do you actually have the rifle yet?
Do you have a lot of trigger time on ARs?
Why not just spend your money on ammo, mags (and some training, if new to ARs), then decide what, if anything needs changing.
Go and read this to see what I am getting at:
http://www.tacticalyellowvisor.net/8343/126721.html
Of course, it's your money, but why waste it?
Regards.
Mark[/QUOTE
im military so i got lots of time on black rifles, this is my first personal AR but there no suprises. Just want to get away from a standard A2 grip no a real big deal just seeing what out there other then magpul.