Out of stock
SKU: HK81000828
UPC: 642230269415
MPN: 81000828
The Heckler & Koch MR556 A4 556NATO 16.5" 10rd semi-automatic rifle is a civilian-legal platform built on proven military engineering. It is designed for shooters seeking a reliable and accurate direct-impingement rifle. This model is suitable for trained civilians, competitive shooters, and those looking for a battle-tested design for duty or sport use.
Featuring a 16.5-inch barrel optimized for 5.56 NATO ballistics, the MR556 A4 delivers velocity and accuracy suitable for intermediate-range engagements. The rifle employs a direct-impingement operating system paired with a free-floating barrel, which minimizes vibration and enhances precision shot-to-shot consistency. The A4 configuration includes Picatinny rail sections for optics and accessories, allowing for customization based on specific missions.
The MR556 A4's accuracy and modularity make it beneficial for law enforcement training units, competitive 3-gun participants, and responsible armed citizens. Its HK pedigree ensures component commonality with existing 5.56 NATO platforms and robust aftermarket support. This rifle is a versatile choice for anyone prioritizing performance and reliability in their firearm.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
