Based off 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.
|Capacity||*10 Rounds, Fixed Magazine|
|Operating System||Short Stroke Gas Piston|
|Barrel||Cold Hammer Forged|
|Twist||1:7″, 6 lands/grooves|
|Trigger Pull||7.64 lbs|
|Length||33.68″ – 37.68″|
|Pistol Grip||Magpul K2|
|Sights||Troy Micro Battle Sights, Optics Ready Picatinny Rail|
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