HK MR556A1
Gun Stats
What to Know
Critic Consensus
The MR556 trigger is a precise two-stage design with a 7.64-pound pull weight according to HK, however on the sample I received the trigger pull was closer to 6 pounds. The rifles heavy barrel places most of the weight toward the front making it seem heavier than it is especially when firing offhand or in routine handling. The HK steel magazine is also more than twice as heavy as... Read critic reviews...
HK MR556A1 for Sale
HK MR556A1 Critic Reviews
HK MR556A1 Description
A direct descendent of the HK416, the MR556A1 is a semi-automatic rifle developed by Heckler & Koch as a premium level commercial/civilian firearm with match rifle capability. Like the HK416, the MR556A1 is a major product improvement over conventional AR-type carbines and rifles. 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. The MR556A1 is produced in the USA using American and German made components. The MR556A1 uses many of the same assemblies and accessories originally developed for the HK416. Like the famous HK416, the MR556A1 uses a German-made barrel produced by Heckler & Kochs famous cold hammer forging process. The highest quality steel is used in this unique manufacturing process producing a barrel that provides superior accuracy and long service life. But unlike the HK416, the MR556A1 does not use a chrome-lined barrel. Chrome-lining can sometimes mask bore imperfections and negatively affect accuracy. For the new series of Heckler & Koch semi-automatic MR rifles, HK designers and engineers believe best accuracy comes with an unlined bore. The unchromed barrel has an internal profile of 6 lands and grooves with a 1 in 7 inch (178 mm) twist. It is also moderately swagged with a slightly smaller internal diameter at the muzzle end than the chamber end. This feature has a positive effect on bullet accuracy and velocity. The thick, heavy contour 16.5-inch MR556A1 barrel also contributes to its excellent accuracy. A precise enhanced two-stage trigger adds significantly to the accuracy of the MR556A1 and an extended latch charging handle makes operating the rifle with a telescopic sight easier. The retractable buttstock can be locked into a solid, non-moving position by tightening an Allen screw in the bottom of the stock. Special target rifle takedown pins ensure the upper and lower receivers are firmly mated for accurate performance. Designed to function with a wide variety of high quality 5.56 x 45 mm ammunition, the MR556A1 uses a C.I.P. dimensioned chamber (a chamber with dimensions specified by the Commission Internationale Permanente).The MR556A1 also functions reliably with most quality Caliber .223 Remington ammunition. The MR556A1 is being produced with the same commitment to quality as German-made HK firearms. By using joint U.S./German manufacturing, Heckler & Koch leverages the relative strengths of two continents to make the preeminent AR-type firearm, combining the designs innovations of the USA and Germany into one new product. *NOTE* rail system may differ from the one pictured.Technical Data
HK MR556A1 Ballistics
HK MR556A1 Parts & Upgrade
How much is a HK MR556A1 worth?
Want To Sell Your HK MR556A1
-
We make you an quick cash offer online
-
We find the dealer that offers you the most money
-
Get cash for your gun or do a trade in
Quick Cash Offer »
How We Compare to Selling It Yourself
We take all the hassle out of selling your gun.
Save Time
Quick Cash Offer
Get your cash offer in minutes
Selling it Yourself
Can take months to sell your gun privately
Buyer
Quick Cash Offer
Trusted retailers will pay you for your gun
Selling it Yourself
You don't know who you're selling to, or if they'll rip you off
Price
Quick Cash Offer
Get your cash offer in minutes
Selling it Yourself
It costs money to place ads to sell your gun, and it takes a lot of time
Difficulty
Quick Cash Offer
Easy online paperwork and registration process for your safe and legal payout
Selling it Yourself
You have to trust the buyer to pay you, and trust that you're following the law