FN QD556
The FN QD556 is a 5.56mm quick-detach sound suppressor engineered for durability, reduced back pressure, and reliable performance. Designed for compatibility with standard 5.56×45mm NATO platforms, it provides effective sound and flash reduction while maintaining weapon balance and handling.
Built with robust materials for demanding operational environments, the FN QD556 features a secure quick-detach mounting system for rapid installation and removal, delivering consistent performance in professional applications.
5.56
Suppressor
7.69"
Length
1.62"
Tube Diameter
20.9 oz.
Weight
Specifications
Construction
The FN QD556™ is a purpose-built 5.56×45 mm NATO rifle suppressor constructed with 3D-printed Inconel superalloy baffles and a stainless-steel blast chamber, finished with high-temperature C-Series Cerakote and designed to deliver durability and performance in a lightweight package.
Key Features
Engineered for modern rifles such as the FN SCAR® 16 series, it features a low back-pressure, forward-venting design that reduces recoil and gas blowback, maintains accuracy with less than a 1 MOA point-of-impact shift in testing, and comes with an FN quick-detach mount installed for versatile mounting options.
Maintenance
Maintenance for the FN QD556 involves regular inspection and periodic cleaning of the baffle stack and mounting interface to remove carbon buildup and ensure proper alignment, with adherence to FN’s service recommendations to sustain sound-suppression performance and reliability over extensive use.







