HK MR556 A1 .223 Remington/5.56 NATO Rifle

Description

Product Overview

The Heckler & Koch MR556 A1 is a premium semi-automatic rifle descended from the HK416 and chambered for .223 Remington and 5.56 NATO. Its proprietary short-stroke gas piston system uses a piston and solid operating rod instead of a conventional direct-impingement gas tube, helping keep hot gases and carbon fouling out of the receiver. A German-made cold hammer forged barrel supports accuracy and extended service life, while the enhanced two-stage trigger provides a refined release for precise shooting. The free-floating handguard features four MIL-STD-1913 Picatinny rails for mounting optics and accessories. An adjustable retractable stock, extended charging-handle latch, and ambidextrous controls make the rifle adaptable to a variety of shooting positions and equipment configurations. The rifle includes a 10-round magazine and has a threaded muzzle for compatible muzzle devices and suppressors.

Key Features

• HK proprietary short-stroke gas piston system reduces fouling in the receiver for reliable operation
• Cold hammer forged 16.5-inch barrel provides long service life and consistent accuracy
• Enhanced two-stage trigger supports precise, controlled shooting
• Free-floating four-quadrant Picatinny handguard accepts a wide range of lights, aiming devices, and accessories
• Ambidextrous controls improve handling flexibility for right- and left-handed shooters
• Retractable stock adjusts for length of pull and can be secured in a fixed position

The HK MR556 A1 delivers piston-driven reliability and match-grade performance for demanding range and field use.