HK MR556 A4 Pistol 5.56 NATO 11" Black 30+1 81001050

HK MR556 A4 Pistol 5.56 NATO

The Heckler & Koch MR556 A4 Pistol in 5.56 NATO is a compact, high-performance semi-automatic pistol, embodying the legacy of the HK416 with civilian-ready enhancements. Featuring an 11-inch cold hammer-forged barrel with a 1/2x28 threaded muzzle, it delivers exceptional accuracy and durability in a 30+1 capacity platform. Its short-stroke gas piston system minimizes carbon fouling, ensuring cleaner operation and reduced maintenance compared to direct-impingement ARs, while the adjustable gas regulator optimizes performance for suppressed or unsuppressed use. This listing includes one 30-round magazine, offering ample firepower for tactical or defensive applications.

The MR556 A4’s slim M-LOK handguard and fully ambidextrous controls— including safety, bolt release, and magazine release—enhance usability for all shooters. The optics-ready Picatinny rail allows for easy mounting of sights or accessories, and the lightweight 7.3-pound design ensures maneuverability without sacrificing stability. No additional accessories are included beyond the single magazine, and all factory components are present, providing a streamlined, ready-to-customize platform compatible with a wide range of aftermarket AR accessories.

With a 27.5-inch overall length and matte black finish, the MR556 A4 Pistol balances portability and rugged reliability. Its robust construction and HK’s renowned engineering make it ideal for tactical operations, home defense, or range use. Whether you’re a professional or enthusiast, this pistol offers uncompromising performance in a compact, versatile package, perfect for those seeking a premium 5.56 NATO firearm.

Specifications