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HK MR556A1 Competition AR-15 5.56 NATO Semi Auto Rifle, 16.5" Barrel 30 Rounds, Magpul

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Typically ships within 1 to 2 business days when a valid FFL is received
  • All firearm sales are final. NO RETURNS.
  • Return to manufacturer for warranty service.
  • Actual buyer must pickup from FFL dealer who will conduct the background check. Learn more
  • Firearm transfer must be the actual transferee/buyer. Click here to see BATFE form "Transaction Record Part 1".
  • Firearms are only available for purchase online.
A $10 handling fee will be charged per order. No additional charge for multiple firearms on an order.
A direct descendent of the HK MR556A1 the MR556A1 Competition is a semi automatic AR styled rifle specifically developed by Heckler and Koch to exploit that match grade capability to dominate 3 Gun competitions world wide! In addition to the standard MR556A1's swagged cold hammer forged heavy contour barrel, two stage trigger and famous gas piston operation, H&K upgraded the fundamentals to give the MR556A1 a competitive edge. It features an extended 14" Modular Rail System keymod handguard and a free floating barrel with an OSS Flash Hider. They added a MAGPUL CTR adjustable/collapsible buttstock, an extended latch charging handle and an extended magazine release. These modifications will give you greater control and the speed you need to leave your competition stunned and choking on your dust. When you need the absolute very best rifle that will work flawlessly no matter what conditions you're in, then you want the Heckler & Koch MR556A1 Competition Semi Automatic Rifle.

Specifications and Features:
Heckler & Koch MR556A1 Competition CR556-A1
AR15 Semi Automatic Rifle
Gas Piston Operation
5.56 NATO accepts .223 Remington
30 Rounds
16.5" Heavy Contour Barrel
Cold Hammer Forged Barrel
Operator Suppressor Systems Flash Hider
1:7" Twist
Flat Top Upper Receiver
MRS Modular Rail System
Free Float Handguard
Two Stage Trigger
7.64 lbs trigger pull
MAGPUL CTR Adjustable Stock
Overall Length 37.5" to 41"
3.07" overall width
9.45" height
8.78 lbs

Discover a varied range of high-quality complete AR-15 rifles right here at Cheaper Than  Dirt! We make it easy to select the perfect gun and get to shooting faster with numerous options ready to ship and ready to shoot right out of the box. Find rifles from trusted, quality brands in the most popular calibers for every need from self-defense to plinking.

Item#: 2-HKCR556-A1
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  • Pick up your firearm from the FFL Dealer, who will need to do a criminal and mental health background check. Transfer fees may apply.
Buying Firearms on the Internet

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There are thousands of FFL Dealers in the United States. You may choose an FFL Dealer from our preferred listing or you may find a dealer in your area. To find a list of FFL Dealers in your area area CLICK HERE. If you choose a dealer that is not on our preferred list, either you or the FFL Dealer will be required to submit a copy of the Federal Firearms License referencing your Cheaper Than Dirt! order number. The FFL Dealer will usually charge a fee to conduct the transfer. There are duties that the FFL Dealer is required to do during the process which include a criminal and mental health background check through NICS. Remember, the FFL Dealer is doing you a favor and the process takes time to complete. Fees can vary so check with the FFL Dealer ahead of time to request a quote on the fees associated with your firearm transfer. The FFL Dealer is in business to make a profit and your internet purchase may be viewed as competition to their retail business. If you feel the fees are too high, you can search for another FFL Dealer.

Completing the Transaction

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Please note! All Firearm Sales are Final

It is important to thoroughly inspect your firearm before completion of the transfer. Once the firearm is transferred into your name, Cheaper Than Dirt! will not accept a return or exchange under any circumstance. If a defect is discovered after completing the transfer, you must contact the manufacturer directly for repair or replacement.