HK MR556A1 Rifle 5.56 30 Rnd Black

$3,499.00
HAK-81000579
Out of stock
Add to wish list

Heckler and Koch Rifles

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.”

Specifications: 

  • Action: Semi Automatic
  • Caliber: 5.56x45mm
  • Barrel Length:16.5"
  • Overall Length: 37.68"
  • Weight: 8.60  LBS
  • Magazine Capacity: 30 Rounds
  • Safety: Manual
  • Grip:Black Synthetic
  • Finish: Black
  • Magazines: 1

This item may be restricted - read more here

Gun Laws & Restrictions

Ammunition, Magazines and other items are restricted in various jurisdictions throughout the United States. Please know the laws in your local jurisdiction. Dark Storm Industries will work with you to accommodate any legal purchase in these areas. Below are a few examples. Please contact us with any questions.

Ammunition

New York City - Ammunition order up to 200 rounds only. The buyer must provide a copy of their NYC Rifle / Pistol Permit before the order can ship. The easiest way to do this is simply photograph it with your Smart Phone and email it to info@dark-storm.com with your order number.

New York State - Ammunition may be ordered online BUT only for in-store pickup. Effective 30 days from when the NYSP puts their background check system online, you will need to provide any required information (TBD) and pass the background check to complete the transaction. If you are purchasing ammunition for a pistol you will need to show your NYS pistol permit.

Connecticut - For ammunition orders, the buyer must email a copy of their Connecticut pistol permit, eligibility certificate, long gun eligibility certificate or an ammunition certificate along with a valid form of identification in order to purchase ammunition. The easiest way to do this is simply photograph it with your Smart Phone and email it to info@dark-storm.com with your order number.

Stun Guns and Tasers

New York State - no sales to residents of New York City. All other counties are ok for retail or shipment.

Rifles & Magazines

Law Enforcement - If you are attempting to purchase a firearm or magazine in a jurisdiction where they are restricted to Law Enforcement Only, you will need to provide a copy of your law enforcement ID card before we can ship and if stated below, a letter authorizing the purchase for duty use on agency letterhead.

Below is a compilation of publicly available information to assist you in your purchases. The information contained herein should not be considered legal advise or any guarantee of legality. Customers should contact local law enforcement for clarification.

State

DS-15 Type

Mag Capacity

LE Exempt

Notes

California

Fixed Mag, Featureless

10

Duty Use Only w/ Letter

No .50 Caliber.  No DS-15 or DS-9 pistols.

Colorado

Standard

15

Duty Use Only w/ Letter

 

Connecticut

Fixed Mag

10

Duty use Only w/ Letter

Under 21 years old - 5 Rounds and 30" minimum length. Fixed Mag Pistols Allowed

Hawaii

Standard

10

 

Fixed Mag Pistols Allowed

Illinois

See Notes

10

No in Chicago,
Duty Use Only w/ Letter Elsewhere

Semiauto rifles prohibited in Aurora, Chicago or Cook County,
Fixed Mag only in City of Highland Park

Indiana

Post Ban

   

Cities of Gary and East Chicago

Maryland

HBAR, Standard

30

Yes

DS-15 Lightning (Standard), other DS-15's HBAR Only. DS-9 and DS-10 Standard

Massachusets

Post Ban, Fixed Mag

10

Yes

Post Ban DS-9 only. DS-10 and DS-15 must be Fixed Mag

New Jersey

Post Ban, Firearm (Non-NFA)

10

Yes

Fixed Mag Pistols Allowed

New York

Fixed Mag or
Featureless

10 (5 in NYC)

Yes

No DS-15's in NYC.  Fixed Mag Pistols varies by County.

Puerto Rico

Post Ban

Any

Duty Use Only w/ Letter

No Springfield XD, XD-M or XD-S Pistols

Washington DC

Fixed Mag or
Featureless

10

Duty Use Only w/ Letter

.50 BMG Prohibited

Washington State

Fixed Mag 10  

Duty Use Only w/ Letter

 

 

Returns and Defective Product

Your satisfaction is important to Dark Storm Industries. If you need to return a product, we will make every reasonable effort to satisfy you.

  • Proof of purchase is required for all returns. This is your printed register receipt for in store purchases or order # for online sales linked to your account.
  • Returns or exchanges must be processed within 30 days of purchase. All returns or exchanges must be in new, unused, sale-able condition unless it is defective.
  • There are no returns or exchanges on firearms, ammunition, body armor, stun guns, tasers, pepper spray, discontinued, or clearance items.
  • Training may be rescheduled without any additional fees, but it non-cancellable / non-refundable
  • A 20% restocking fee will apply to all order cancellations or changes. This includes delayed NICS transactions that are requested to be cancelled.
  • A $50.00 fee will be assessed on all NICS Deny Refunds.
  • Items with prices ending in "XX.77" are discontinued and/or clearance items
  • If you transfer in a firearm that is not compliant or you are unable to possess, the firearm will be shipped back at your expense. By attempting to transfer non-compliant guns, you will also forfeit your transfer fee. 
  • If you order a firearm that is NOT legal in your location, a 20% restocking fee will be assessed upon the order being refunded.
  • Gift Cards must be treated as cash as they cannot be replaced if lost or stolen. Gift Cards cannot be redeemed for cash. Gift cards do not expire or charge fees.
  • Lead times on firearms are estimations and are subject to change. Due to ongoing supply chain issues which were caused by the global pandemic, we cannot guarantee any specific timeframe. We do our absolute best to accurately estimate said lead times.

Please contact our customer service department via email at info@dark-storm.com or phone at 800-963-7700 to obtain an RMA # prior to shipping your item back to us.