Intro: The Heckler & Koch MR556 A4 is engineered as a compact, versatile semi-automatic rifle for range use and utility applications. Its configuration suits shooters seeking a short-barrel platform with modern ergonomics and ambidextrous controls.

Physical/Product Overview: The MR556 A4 is built around a Patriot Brown Picatinny rail receiver fitted with an M-LOK handguard and a black threaded barrel. Ergonomic features include a black polymer grip and a black synthetic 6-position stock designed for adjustable length of pull and familiar handling.

Key Specifications

The caliber is 5.56x45mm.
The capacity is 30+1 rounds.
The barrel length is 11 inches.
The barrel is finished in black and is threaded.
The handguard type is M-LOK.
The receiver is a Patriot Brown Picatinny rail receiver.
The stock is a black synthetic 6-position stock.
The grip is a black polymer grip.
The controls are fully ambidextrous.
The operating system is a short-stroke gas piston with an adjustable gas regulator.

Closing: For those seeking an MR556 A4 rifle for sale, the Heckler & Koch HK 81001201 MR556 A4 5.56x45mm combines short-barrel maneuverability with piston-driven reliability; buy the Heckler & Koch HK 81001201 MR556 A4 5.56x45mm online today.