H&K MR556 A4 5.56x45mm 16.5in 10+1 Patriot Brown

About this product

The H&K MR556 A4 is a reliable and versatile AR-pattern rifle with a short-stroke gas piston system and adjustable gas regulator, perfect for range, duty, and precision shooting.

The Heckler & Koch MR556 A4 is a semiautomatic AR-pattern rifle chambered in .223 Rem/5.56 NATO, designed for dependable range, duty, and precision shooting applications. This rifle features a short-stroke gas piston operating system that significantly reduces carbon fouling in the action and lowers wear on internal components, ensuring a longer lifespan and smoother operation.

An adjustable gas regulator allows you to fine-tune the rifle’s performance for both suppressed and unsuppressed shooting, making it versatile for a wide range of scenarios. The fully ambidextrous controls and a slimmer profile make it comfortable and ergonomic for both right- and left-handed shooters, while the six-position synthetic stock provides a customizable fit for various shooting setups.

The 16.5-inch threaded barrel, with a 1:7-inch rate of twist, ensures consistent accuracy and reliability. Weighing in at 7.67 pounds and measuring 36.5 inches in overall length, the MR556 A4 is a well-balanced and maneuverable rifle. Whether you’re a competitive shooter, a law enforcement professional, or an avid hunter, the MR556 A4 is built to meet your needs.

At Columbiagunrack Net, we are proud to offer this high-quality rifle to shooters across all 50 states via FFL transfer. Trust us to provide you with the best service and the most reliable firearms.