The Heckler & Koch HK416 is an modern military firearm used by governments around the world.

This rifle is a modified version of the American M4 model Colt rifle.  Incorporating several advancements, the most beneficial is a new gas operating system adopted from the Heckler & Koch G36.  M4s can be updated via the installation of a new upper receiver, buffer and drive spring.  It uses the same military 5.56×45 round that has been adopted by NATO.

U.S. Special forces have been using the rifle for some time, reportedly going back to 2004.  It has been in the news lately as one of the tools used in the capture of Osama Bin Laden.

I found this video demonstrating just one of the superior features of the HK 416 versus the M4 Colt in the “Over the Beach Test.”

The good news is that there are civilian versions of the HK416 and HK417 available.  Referred to as the MR223 and MR308, both are semi-automatic rifles with several ‘sporterized’ features.  Introduced to the American civilian marketat the 2009 SHOT Show, these two firearms were announced as being available; renamed respectively MR556 and MR762. Of course these are available in the Remington .223 caliber.
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