I second the magpul above. Much better ergo and feel than stock. Take a look at the angle foregrip and the various tactical verticals. They both clamp to the same rail.
"You know why there's a Second Amendment? In case the government fails to follow the first one."
-- Rush Limbaugh, in a moment of unaccustomed profundity
"No free man shall ever be debarred the use of arms. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government"
-- Thomas Jefferson, 1 Thomas Jefferson Papers, 334
"MOLON LABE" - Come and get them, can't be any plainer than that!