The M4/M4A1 5.56mm Carbine is a lightweight, gas operated, air cooled, magazine fed, selective rate, shoulder fired weapon with a collapsible stock. It is now the standard issue firearm for most ...

The Swedish armed forces have decided to immediately purchase 15,000 Colt M4A1 automatic rifles from the U.S. to replace the worn-out weapons from the 1980s and 1990s.