Heckler & Koch MR556A1 Rifle 5.56
Heckler & Koch GmbH (HK) is a German defense manufacturing company that manufactures handguns, rifles, submachine guns, and grenade launchers. The company is located in Oberndorf in the state of Baden-Württemberg, and also has subsidiaries in the United Kingdom, France and the United States. The company's motto is "Keine Kompromisse!" meaning "No Compromises!" HK provides firearms for many military, paramilitary units, many other counter-terrorist and hostage rescue teams. Some of their more notable products include the MP5, UMP submachine guns, the G3, HK417 battle rifles, the HK33, G36, HK416 and MR556A1 assault rifles, the MG5, HK21 General-purpose machine guns, the MP7 personal defense weapon, the USP series of handguns, and the high-precision PSG1 sniper rifle. HK has a history of innovation in firearms, like the use of polymers in weapon designs and an integral rail for flashlights on handguns. HK also developed modern polygonal rifling, noted for its high accuracy, increased muzzle velocity and barrel life. HK has used the operating systems for small arms blowback operation, short-recoil, roller-delayed blowback, gas operation via Short-stroke piston, and gas-delayed blowback.
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HK MR556A1 5.56 MLOK Rifle Features
- Model 8100533
- UPC 642230260221
- Chambered 5.56
- Cold hammer forged barrel
- Free floating MLOK handguard
- Adjustable sights
- Ambidexterous safety/selector
- HK grip with large palmswell
- Six position adjustable MR buttstock
- 1:7" twist
- 30 round capacity
The HK MR556A1 is 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 and uses many of the same parts and assemblies developed for the HK416.
Like the HK416, the MR556A1 uses a proprietary HK short-stroke gas piston in place of the direct-gas-impingement system found on lesser AR15-style rifles that propels exhaust gas into the upper receiver to operate the action.
In the “closed” HK piston system, exhaust gasses never enter the receiver, which means the HK runs cooler, cleaner and more reliably.
When adverse conditions, like dust, sand and mud are introduced, the advantage of the HK system becomes even more drastic. That is why so many of the world’s elite military and law-enforcement customers have absolute trust in their HKs.
The MR556A1’s barrel is cold hammer forged from the highest quality cannon-grade steel. It has a 1 in 7” twist and a taper-bore configuration, with a slightly smaller diameter at the muzzle for improved accuracy and velocity. And while the material and cold hammer forging process themselves greatly enhance durability, HK’s processes include many additional steps not taken by other manufacturers to produce superior accuracy and service life, ensuring performance well beyond “mil-spec.”
Optic NOT included
Important Magazine Information
Atlantic Firearms follows all state regulations regarding the sale of high capacity magazines. Due to multiple states and cities now enforcing various magazine restrictions and more coming we will not ship magazines that are restricted in your area with firearms to the states listed below. If the mag that comes with the firearm is not legal in your state or city the magazine will be removed from the shipment. We do not offer custom magazine requests to swap out, ship to another state, refund, pinning of mag, substitutions, dealer approval or other. Hopefully we will see changes to these laws and violations to our second amendment rights. We apologize for this but we simply cannot accommodate each and every magazine request with over 30 different laws, regulations and restrictions impacting states, cities and local jurisdictions throughout the country. It is the customers responsibility to be informed of your local laws prior to completing your purchase. Atlantic Firearms is not responsible for any issues that may arise with magazines shipped to you or your FFL dealer that may not be legal in your area due to a change in current laws.
It is your responsibility to be familiar with your current local gun laws BEFORE placing your order. Please feel free to email us with questions you may have.
By placing an order with Atlantic Firearms you are acknowledging and agreeing to all Terms and Conditions outlined in the Terms And Conditions section.
Please see our High Capacity Magazine Policy HERE.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov
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