A direct descendant of the worldfamous HK416 the MR556A1 is the commercial carbine from the same DNA. It offers the battlefieldproven 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 Germanmade components and uses many of the same parts and assemblies developed for the HK416. Like the HK416 the MR556A1 uses a proprietary HK shortstroke gas piston in place of the directgasimpingement system found on lesser AR15style 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 worlds elite military and lawenforcement customers have absolute trust in their HKs.”
UPC
642230262553
Action
SEMI AUTOMATIC
Finish
BLACK
Weight
8.6 LBS.
Caliber
5.56X45MM NATO
Capacity
30 ROUNDS
Barrel Length
16.5 BARREL
WARNING! This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. For more information: www.p65warnings.ca.gov
FFL Transfer & Firearms Laws for HK MR556 Rifles Semi Auto
All firearms, including the HK MR556 Rifles Semi Auto, must be shipped to a licensed Federal Firearms License (FFL) dealer.
You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
Place your order online.
Provide your preferred FFL dealer information.
We ship the firearm directly to your FFL.
You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the HK MR556 Rifles Semi Auto is legal in your state.
Some states may have restrictions on certain firearm models or features.
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy HK MR556 Rifles Semi Auto from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy HK MR556 Rifles Semi Auto?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is HK MR556 Rifles Semi Auto available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
All firearms, including the HK MR556 Rifles Semi Auto, must be shipped to a licensed Federal Firearms License (FFL) dealer.
A background check and any required local paperwork must be completed before you can take possession.
How It Works
Place your order online.
Send us your preferred local FFL dealer info.
We ship the firearm to your FFL after verification.
Complete background check and pick up from your dealer.
Legal Compliance
We comply with all U.S. firearm laws. It is your responsibility to ensure the HK MR556 Rifles Semi Auto is legal in your state.
Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.
