The U.S. Army is now set to replace the M-4 Carbine and Squad Automatic Weapon (SAW) with a weapon from Sig Sauer.
Army Picks Its Replacement for the M4 and SAW (yahoo.com)
The Army will also be switching calibers, from 5.56mm to a new 6.8mm round.
An interesting story, documenting some of the issues (both performance wise and business wise) being encountered during the work-up of the U.S. Army's new Handgun:
The U.S. Army?s New Handgun Is in Big Trouble | The National Interest Blog...