A direct descendant of the world-famous HK416, the MR556A1 is the commercial carbine from the same DNA. It offers the battlefield-proven reliability, durability and precision you would expect from a rifle that bears the name Heckler & Koch. The MR556A1 is assembled in the USA using US and German-made components…

A direct descendant of the HK416, the HK MR556 for sale offers impeccable durability, precision, and battle proven reliability. This rifle utilizes a "closed" short stroke gas piston system resulting in a firearm that performs cleaner, cooler, and more reliably, making direct gas impingement system malfunctions a thing of the past.

The MR556A1 is an improved version of the MR556 with a free floating modular rail system, Picatinny rail, and interchangeable receiver assemblies. The MR556A1 is the civilian version of the HK416, a fully automatic weapon used by Navy Seals still today.

The latest update from HK-USA to the commercial variant of the legendary HK416, the MR556 A4 represents an enhanced example of “no compromise” HK performance. Chambered in 5.56 x 45mm, its short-stroke gas piston operating system does not impart hot carbon fouling back into the action, allowing the weapon to…

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

The HK MR556 A4 represents the pinnacle of precision engineering and tactical performance. Designed for uncompromising accuracy, durability, and reliability, this semi-automatic rifle is a civilian variation of the legendary HK416, trusted by military forces worldwide.

HK MR556 5.56mm NATO 16.5in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds - A direct descendant of the HK416, the MR556A1 is a semi-automatic rifle configuration with match rifle capability developed for civilian users.

A direct descendent of the HK416, the MR556A1 is a semi-automatic rifle developed by Heckler & Koch as a premium level commercial/civilian firearm with match rifle capability. Like the HK416, the MR556A1 is a major product improvement over conventional AR-type carbines and rifles.

MANUFACTURER: Heckler and Koch (HK USA) FAMILY: MR556 Series MODEL: MR556 A4 TYPE: Rifle &nb

The latest update from HK-USA to the commercial variant of the legendary HK416, the MR556 A4 and MR762 A4 represent an enhanced example of “no compromise” HK performance.