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HK MR556A1 Competition 5.56mm NATO 16.5in Black Semi Automatic Modern Sporting Rifle – 30+1 Rounds

Rated 5.00 out of 5 based on 1 customer rating

Original price was: $2,749.99.Current price is: $2,099.99.

Category: All HK Rifles

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HK MR556A1 Competition 5.56mm NATO 16.5in Black Semi-Automatic Modern Sporting Rifle – 30+1 Rounds

The HK MR556A1 Competition is the ultimate modern sporting rifle designed for competitive shooters and tactical enthusiasts. Built as a premium civilian version of the legendary HK416, this rifle delivers unmatched performance, precision, and reliability. Combining advanced engineering with cutting-edge components, the MR556A1 Competition is ideal for competition, recreational shooting, or serious home defense.

Advanced Modular Rail System (MRS)

This competition-grade MR556A1 features the new 14-inch Modular Rail System (MRS). Lightweight and highly customizable, the MRS allows shooters to add accessory rails exactly where needed, without adding unnecessary weight. Its extended length does not touch the barrel, preserving the free-floating barrel design that enhances accuracy and precision. Compared to traditional rectangular full rail systems, the MRS offers a more ergonomic and comfortable handguard surface, making it perfect for extended shooting sessions.

Enhanced Competition Features

The MR556A1 Competition includes several performance upgrades for competitive shooting. An extended magazine release allows faster reloads, while the Operator Suppressor Systems (OSS) compensator replaces the standard MR flash hider. OSS is a world leader in sound and flash suppression technology, and their compensator reduces muzzle rise and felt recoil for faster follow-up shots. Combined, these features make the MR556A1 Competition exceptionally responsive and controllable in high-speed shooting scenarios.

High-Quality Stock and Barrel

This rifle comes equipped with a Magpul CTR buttstock, which moves smoothly along the receiver extension and locks securely in place. Its lightweight profile is ideal for competitive shooters who need rapid adjustments and stable shooting. The German-made long service barrel ensures longevity, precision, and consistent performance, making it a reliable platform for both competition and recreational shooting.

Specifications

Feature	Details
Capacity	30+1 Rounds
Barrel Length	16.5 inches
Finish	Black
Stock	Magpul CTR Buttstock / 14-inch Modular Rail System (MRS) Handguard
Sights	Full-Length MIL-STD 1913 Optical Rail
Weight	7.6 lbs
Action	Semi-Automatic
Cartridge	5.56mm NATO
Color	Black
Gun Model	MR556A1 Competition
Overall Length	33.75 – 37 inches
Twist Rate	1:7 in
Type	Centerfire

Why Choose the HK MR556A1 Competition?

The MR556A1 Competition is designed for shooters who demand high performance and precision. Its advanced gas piston system ensures reliable operation under heavy use, while the free-floating Modular Rail System allows full customization without sacrificing accuracy. The combination of the OSS compensator, extended magazine release, and lightweight Magpul CTR stock provides superior control and responsiveness for rapid-fire and competitive environments.

Additional Features

Lightweight 7.6 lbs design for improved handling
Perfect balance for competitive shooting and tactical use
Fully adjustable stock for ergonomic comfort and quick adjustments
Compatible with AR-style accessories and upper receiver kits
High-quality German-made long service barrel for consistent accuracy

Whether you are a competitive shooter, recreational enthusiast, or tactical operator, the HK MR556A1 Competition 5.56mm NATO 16.5in Black Semi-Automatic Modern Sporting Rifle delivers unmatched performance, reliability, and modularity. Upgrade your shooting experience with a rifle engineered for precision, speed, and versatility. Learn more about Heckler & Koch firearms here.