Sporting Rifles: The 5 Best That Can Fire a Bullet (Who Made the List?)

Introduced to the American civilian market in 2007, the MR556 is the civilian version of the Heckler and Koch 416 assault rifle. Like the 416, the MR556 uses the gas-piston operating system, a significant break from the direct impingement system used in the AR-15. In fact, the system is similar to that used in the Mini-14. The result is a rifle that releases dirty gases instead of using them to cycle the rifle, making the weapon cleaner running and less prone to overheating. The MR556 is identic