Interesting, replacing the SAW with an H&K 416 variant?
http://www.thetacticalwire.com/story/246746
http://www.thetacticalwire.com/story/246746
Designated the M27 Infantry Automatic Rifle, the lightweight, 11.62 pounds weapon with ancillary equipment, is a variant of the highly successful Heckler & Koch HK416 used by military, law enforcement, and special operations units in the U.S. and throughout the world.
The M27 IAR replaces the heavier, M249 SAW (Squad Automatic Weapon) which has been used by the Marines in Infantry Squads since the mid-1980s in the automatic rifle role. Both weapons fire the 5.56 mm NATO cartridge.