Official statement made by Heckler & Koch:

Contrary to anonymous source reports on the Internet, the U.S. military HAS NOT “encountered significant problems with HK Model 416s in combat conditions.” HK416s are currently being used in combat operations by U.S. and NATO special operations forces.

Furthermore, Heckler & Koch HAS NOT suspended production of the HK416. The HK416 continues to be one of Heckler & Koch’s most successful and sought after products.
I don't care what the detractors say, I've still got the MR556 on my Want List.