Heckler & Koch MR556 A4 Pistol | 5.56 NATO | Factory New

Heckler & Koch MR556 A4 Pistol | 5.56 NATO | Factory New

The HK MR556 A4 Pistol brings the proven engineering of the HK416 platform into a compact, civilian-legal configuration. Chambered in 5.56 NATO / .223 Rem, this is one of the most refined pistol-format ARs on the market, built to the same exacting standards that have made Heckler & Koch the choice of military and law enforcement units worldwide.

The Platform:

At the heart of the MR556 A4 is HK's short-stroke gas piston operating system, the same system used in the HK416 and trusted by tier-one units globally. Unlike direct impingement designs, the piston system keeps heat and carbon out of the receiver, running cleaner and cooler over extended use. The adjustable gas regulator allows fine-tuning for suppressed or unsuppressed operation and across varying ammunition loads.

The 11" threaded barrel is built for accuracy and ready for suppressor or muzzle device attachment right out of the box. Fully ambidextrous controls make this platform accessible to left and right-handed shooters equally, and the M-LOK handguard provides a clean, versatile mounting surface for lights, grips, and accessories. An integrated Picatinny top rail runs the full length for optics mounting.

Specifications:

• Caliber: 5.56 NATO / .223 Rem
• Barrel Length: 11" Threaded
• Action: Semi-Automatic, Short-Stroke Gas Piston
• Gas System: Adjustable
• Handguard: M-LOK
• Controls: Fully Ambidextrous
• Rail: Integrated Picatinny
• Country of Origin: Germany

What's Included:

• One 30-round HK magazine
• Original packaging

Condition:

Factory new in the box.