HK MR556 A4 5.56 NATO 30rd 16.5" Barrel Rifle

HK-USA brings its legacy of precision engineering and battlefield-proven reliability to the commercial market with the HK MR556 A4, the latest evolution of the civilian version of the legendary HK416. This rifle offers "no compromise" performance with a host of upgrades, making it the pinnacle of AR-platform reliability, durability, and adaptability.

Key Features

1. Short-Stroke Gas Piston System

   • Cleaner operation with reduced carbon fouling in the action.
   • Increased reliability and reduced maintenance compared to direct-impingement systems.

2. Adjustable Gas Regulator

   • Tune the rifle for optimal performance in suppressed or unsuppressed configurations.

3. Ambidextrous Controls

   • Fully ambidextrous setup for ease of use by left- or right-handed shooters.

4. Enhanced Design

   • Slimmer profile and lighter weight for better maneuverability.
   • Built for durability and unparalleled reliability under demanding conditions.

5. Optics Ready

   • No built-in iron sights for flexibility to mount your preferred optic system.

Specifications

• Caliber: 5.56x45mm NATO
• Magazine Capacity: 30 rounds
• Barrel Length: 16.5 inches
• Barrel Profile: 6 lands and grooves, right-hand twist (1:7 twist rate)
• Trigger Pull: 4.5 to 5.6 lbs
• Stock Length (Extended): 36.5 inches
• Stock Length (Retracted): 33.25 inches
• Width: 3.07 inches
• Height: 7.5 inches