Marking 75 years of excellence, Heckler & Koch proudly presents the MR556A1 Tropentarn, a limited-edition masterpiece inspired by the German military's Tropentarn camouflage. With only 500 units offers, each rifle is engraved with a 75th Anniversary insignia and includes four (4) 20-round magazines, making it a highly coveted collector's item. Engineered for unmatched reliability, the HK proprietary gas piston system replaces traditional gas tubes with a piston and solid 'pusher' rod, eliminating malfunctions caused by carbon fouling, just like the battle-proven HK416 used by elite military and law enforcement units. The Picatinny rail ensures seamless optics and sight integration, while fully interchangeable subassemblies offer compatibility with high-quality AR-style firearms. At its core, the MR556A1's cold hammer-forged, German-made barrel sets a new standard in accuracy and durability. Forged from premium steel, this 16-1/2 inches heavy-contour barrel features an unlined bore with a 1:7 twist rate, optimizing bullet stability and velocity. Unlike chrome-lined barrels, which can mask imperfections, HK's engineering delivers exceptional precision with every shot. Blending legendary performance with a historic tribute, the MR556A1 Tropentarn is a must-have for firearm enthusiasts, collectors and those who demand the pinnacle of HK craftsmanship.

M-LOK attachment system is a lightweight, modular platform for secure and customizable accessory mounting
The two-stage trigger offers a crisp, predictable break for enhanced accuracy and precision shooting
The gas-piston system provides cleaner operation, reduced recoil and improved reliability in adverse conditions
Ambidextrous safety provides intuitive operation and added security

Report incorrect product description

Reviews

Q & A

Retail Stock

Compliance

Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).