HK MR556A1 AR-15 5.56 NATO Semi Auto Rifle 16.5" Barrel 30 Rounds Free Float M-LOK Hand Guard Collapsible Stock Matte Black Finish

The MR556A1 is the commercial carbine based off of the famous HK416 platform. With a lineage of proven reliability, durability and precision, the MR556A1 was baptized on the battlefield. Assembled in the U.S. using both German and U.S.-made components, using many similar components to the HK416 means this is the closest the initiated can get to owning the real thing. Like the HK416, the MR556A1 uses a proprietary HK short-stroke gas piston system instead of the direct gas impingement system found on lesser AR-15 style rifles. This closed piston system doesn't allow the exhaust gasses to enter the receiver, meaning the HK runs cooler, cleaner and more reliably. During adverse conditions with dust, sand and mud, the advantage of the HK system becomes even more evident, which is why many of the world's elite military units, law enforcement professionals and civilian enthusiasts have placed total trust in their HK's. Don't be overwhelmed as one would be when making such a decision, select the rifle that bears the name of Heckler & Koch.

HK MR556A1 (Matte Black) Features and Specifications:
HK 81000579
Closed HK Short-Stroke Gas Piston System
Semi-Automatic Operation
5.56 NATO (Accepts .223 Remington)
16.5" Medium-Contour Cold Hammer Forged Barrel
1:7" Twist Rate
Six Lands and Grooves, Right Twist
A2 Flash Hider
Flat-Top Optics-Ready Upper Receiver
30-Round Magazine
Standard AR-15 Pattern Magazine
Magpul Polymer Pistol Grip
Ambidextrous Safety Selector
M-Lok Free-Float Handguard
HK Carbine Collapsible Stock
7.64 lb Trigger Pull
Overall Length: 33.90" Stock Retracted/37.68 Stock Extended
Overall Height: 9.45"
Overall Width: 3.07"
Overall Weight: 8.60 lbs (without Magazine)
Matte Black Finish