Buy HK MR556-A1 5.56mm 16.5″ FDE – Factory CA online| HK MR556-A1 5.56mm 16.5″ FDE – Factory CA for sale
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|
CA-Legal Fixed Magazine Rifle, includes 10 round magazine. Click Here for more information.
Important note about our photos
While we make every effort to ensure that our product photos are accurate, manufacturers occasionally change the design of components such as triggers, sights, or magazines without notice. Also, modifications to the firearm or component may be required in order to meet specific state compliance requirements. While we make every effort to accurately describe and illustrate the item you are going to receive, there may be visual differences on various components that do not affect functionality.