Guns International #: 103276275
Seller's Inventory #: 569313

Category - Heckler & Koch Pistols - AR15 Rifles

Category
Heckler & Koch Pistols
AR15 Rifles

HECKLER & KOCH MR556-A1 5.56X45MM NATO

Description:
Guns Listing ID: 569313



Heckler & Koch MR556-A1 – 5.56x45mm NATO SEMI-AUTOMATIC RIFLE
The Heckler & Koch MR556-A1 is a semi-automatic rifle chambered in 5.56x45mm NATO, designed to bring H\&K’s military-grade engineering and reliability to a modern sporting/duty platform. Built for precision, durability, and reliable function in demanding conditions, the MR556-A1 is well suited for tactical use, training, and versatile range applications.

Constructed with a forged aluminum upper and lower receiver and a cold-hammer-forged chrome-lined barrel, the MR556-A1 features a short-stroke piston operating system (derived from the HK416 family) for clean, reliable cycling. The rifle incorporates a full-length Picatinny top rail for optics, modular M-LOK / handguard attachment options (depending on configuration), flip-up backup iron sights, and ambidextrous controls for user versatility. Its robust gas system, quality barrel, and balanced ergonomics provide consistent accuracy and dependable operation under extended use.

Engineered for serviceability and battlefield-proven performance, the MR556-A1 emphasizes low maintenance, reliable extraction/ejection, and shooter adaptability. Its 5.56x45mm NATO chambering, piston system, and rugged construction make it a premium choice for users who demand proven durability and consistent function.

Specifications
Model: Heckler & Koch MR556-A1
Caliber: 5.56x45mm NATO
Action: Semi-automatic, short-stroke gas piston
Barrel Length: Approx. 16.5 inches (cold-hammer-forged, chrome-lined)
Overall Length: Approx. 33–36 inches (stock dependent)
Height: Approx. 8.5 inches (varies with sights/optic)
Width: Approx. 2.5–3.0 inches
Capacity: 30+1 rounds (standard)
Trigger: Single-stage (mil-spec style)
Weight: Approx. 7.5–8.5 lbs (unloaded, configuration dependent)

The Heckler & Koch MR556-A1 in 5.56x45mm NATO offers piston-driven reliability, premium barrel construction, and adaptable ergonomics in a rugged semi-automatic rifle. Built for demanding use and long-term durability, it delivers consistent accuracy and dependable operation across tactical, training, and sporting applications.

NOTE: COMES WITH H&K SOFT CASE

Manufacturer: HECKLER & KOCH
Model: MR556-A1
Caliber Info: 5.56X45MM NATO
Condition: Used - Non-Certified
Barrels: 16.5" BARREL
Action: SEMI AUTOMATIC
Finish: blk

Price: $2,500.99