Is This Really Necessary?

[Quick 2]

I keep mine a light and simple as possible. MagPul forearm and stock iron sights A1 barrel BushMaster Carbon15 SLC. With this set up with a fully loaded 30rd mag my rifle is still 1 pound lighter than a M4 contour barrel and will shoot under an inch MOA with cheap steel case ammo. There was a saying we had when I was in the Military ounces equal pounds and pounds equal pain.