HK MR556 A4 556NATO 16.5 10RD BLK

The HK MR556 A4 is a refined semi-automatic rifle designed by Heckler & Koch, featuring a 16.5-inch threaded barrel and a 10-round magazine capacity. This model incorporates an anodized black finish and a durable polymer stock, contributing to its lightweight and ergonomic design.

Built on the proven platform that inspired the HK416, the MR556 A4 utilizes a short-stroke gas piston system, which enhances reliability by reducing fouling and wear compared to traditional direct impingement systems. Its fully ambidextrous controls and adjustable gas regulator provide versatility and ease of operation, allowing users to optimize performance for various conditions.

Ideal for those seeking a reliable and precision-engineered rifle, the HK MR556 A4 combines durability with modern features to meet demanding shooting requirements. Its design emphasizes long-term functionality and adaptability, making it a noteworthy option within the semi-automatic rifle category.