Heckler & Koch MR556A1 Short-Stroke Gas Piston 5.56 NATO Blue/Black Rifle

Description

Product Overview

The Heckler & Koch MR556A1 is a premium semi-automatic rifle derived from the HK416 platform. Its short-stroke gas piston system keeps hot propellant gases and carbon fouling out of the receiver, supporting reliable operation and simplified maintenance. A cold hammer forged German barrel, enhanced two-stage trigger, and free-floating handguard contribute to match-grade accuracy. The four-quadrant handguard provides MIL-STD-1913 Picatinny rails for mounting optics and accessories, while the retractable synthetic stock allows the rifle to be configured for different users and shooting positions.

Key Features

• Short-stroke gas piston system reduces fouling in the receiver and supports reliable cycling
• Cold hammer forged 16.5-inch barrel provides durability and consistent accuracy
• Enhanced two-stage trigger offers a precise, predictable trigger press
• Free-floating four-quadrant Picatinny rail handguard supports optics, lights, and other accessories
• Retractable synthetic stock adjusts for length of pull and can be secured in position
• Ambidextrous safety selector accommodates right- and left-handed operation

The MR556A1 combines HK416-derived piston operation with a match-capable barrel and adaptable accessory rail system for demanding rifle applications.