HK MR556-A1 5.56mm Semi-Automatic Rifle

  • Item Number: MR556-A1
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  • Condition: NEW
$4,999.99
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Product Description

What's in the Box

  • MR556-A1 5.56x45mm Rifle
  • (1) 30-Round Magazine
  • Troy Industries Folding Battle Sights
  • H&K Multi-Tool
  • H&K Tactical Range Bag
  • Cable Lock
  • Owner's Manual

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.

The MR556A1 uses the HK proprietary gas piston operating system, employing a piston and a solid operating “pusher” rod in place of the gas tube normally found in AR15/M16/M4-style firearms. This method of operation virtually eliminates malfunctions that are common to direct impingement gas systems since hot carbon fouling and waste gases do not enter the receiver area. This is the same key feature critical to the success of the HK416 rifles used by leading military and law enforcement customers.

The MR556A1 is produced in the USA using American and German made components. The MR556A1 uses many of the same assemblies and accessories originally developed for the HK416 including the HK free-floating four-quadrant rail system.

A precise enhanced two-stage trigger adds significantly to the accuracy of the MR556A1 and an extended latch charging handle makes operating the rifle with a telescopic sight easier. The retractable buttstock can be locked into a solid, non-moving position by tightening an Allen screw in the bottom of the stock. Special target rifle takedown pins ensure the upper and lower receivers are firmly mated for accurate performance.

Firearm Specifications

  • Manufacturer: H&K
  • Model: MR556A1
  • Caliber: 5.56x45mm
  • Barrel Length: 16.5"
  • Overall Length: 33.9-37.68"
  • Trigger Pull: 7.64 lbs.
  • Barrel Profile: 6 Lands & Grooves; 1:7" RH
  • Sight Radius: 14.6"
  • Width: 3.07"
  • Height: 9.45"
  • Trigger Pull: 7.64 lbs.
  • Sights: Troy Industries Folding Battle Sights

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