Heckler & Koch/Knights Armament Combo Rifle Kit MR556A1 5.56 NATO - 16.5"

Heckler & Koch Firearms
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Heckler & Koch MR556A1 semi-automatic rifle chambered for 5.56x45mm NATO. A direct descendant of the world-famous HK416, the MR556A1 is the commercial carbine from the same DNA. It features a 16.5-inch cold hammer forged barrel, 1:7 twist, short-stroke gas piston, picatinny rail for optic mounting,  ambidextrous controls, Magpul Grip, M-LOK handguard, and an adjustable stock. This firearm ships in its factory box with a soft carry case, two 30-round magazine, an owner’s manual, and a lock. 


Included in the HK MR556 kit: 

KAC Knights Armament Folding Micro Rear Sight (Part #25650)

KAC Knights Armament Folding Micro Front Sight (Part #25654)

ERGO Grip M-LOK WedgeLok Grip Panel Covers Black 4-Pack


Knights Armament's line of Micro Iron Sights are currently in use by the United States Army, Marine Corps, and numerous law enforcement agencies worldwide. This is because they are built to exacting tolerances, maintain their zero under adverse conditions, and when folded have one of the lowest profile top-rail foot prints in the industry.