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H&K MR556A1 MR-556 30+1 5.56NATO 16.5"

10 Reviews | Questions & Answers
Model: MR556A1
 
Condition: Factory New
 
Bud's Item Number: 69886
 
UPC: 642230246454
 
MFG: HECKLER & KOCH INC

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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 & Koch’s 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.

 
SPECIFICATIONS
Finish NiBX
Action MuzzleLoader Frame
Caliber 5.56x45mm
Barrel Length 28"/23"23"
Overall Length 46.7"
Trigger Not Listed
Safety Manual Tang
Capacity 10 + 1
Stock Black Composite
Weight 8.6 lbs
SPECIFICATIONS
Finish Black
Action Semi-Automatic
Caliber 5.56x45mm
Barrel Length 16.5 "
Overall Length 33.9"-37.68"
Trigger Two Stage
Safety Ambidextrous
Capacity 30 + 1
Stock Adjustable
Weight 8.6 lbs
SPECIFICATIONS
Finish Black/Cerakote OD Green
Action Pistol
Caliber 223 WSSM
Barrel Length 20 " HEAVY THREADED
Overall Length 44.12"
Trigger Direct
Safety Two Stage
Capacity 5 + 1
Stock Hogue
Weight 8.6 lbs
SPECIFICATIONS
Finish Tungsten
Action Flintlock
Caliber 22 Winchester Magnum Rimfire (WMR)
Barrel Length 16.875"
Overall Length 38.3"
Trigger CMC Curved
Safety Trigger guard safety
Capacity 7
Stock Walnut Finished Hardwood
Weight 8.6 lbs

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