Heckler & Koch (HK)

MR556 A4 11" Pistol – 5.56 NATO

The Heckler & Koch MR556 A4 Pistol brings the legendary HK416 platform to the civilian market in a compact 11-inch configuration. Representing the latest evolution of HK's renowned MR556 series, the A4 incorporates enhanced ergonomics, improved handling, and the exceptional engineering that has made Heckler & Koch a leader in modern firearms development.

At the heart of the MR556 A4 is HK's proven short-stroke gas piston operating system, designed to reduce carbon fouling within the action while delivering exceptional reliability and durability. An adjustable gas regulator allows for suppressed or unsuppressed operation, while fully ambidextrous controls, a slimmer profile, and reduced weight provide improved handling and versatility.

Combining the heritage of the HK416 with modern refinements, the MR556 A4 Pistol represents the next generation of HK's premium piston-driven AR platform.

Specifications:

• Manufacturer: Heckler & Koch

• Model: MR556 A4 Pistol

• Caliber: 5.56 NATO

• Action: Semi-Automatic

• Operating System: Short-Stroke Gas Piston

• Barrel Length: 11"

• Barrel Twist: 1:7 RH

• Muzzle Thread: 1/2x28

• Overall Length: 31.7"

• Weight: 6.7 lbs. (without magazine)

• Controls: Fully Ambidextrous

• Gas System: Adjustable for Suppressed/Unsuppressed Operation

• Magazine Capacity: 10 or 30 Rounds (depending on configuration)