The Knights Armament Company 5.56mm M4QD Flash Suppressor was designed to mitigate flash. The M4QD Flash Suppressor is a platform for attaching the Knight's Armament quick detach QDSS-NT4 sound suppressor. Includes a 7-piece shim kit.
- Material: Steel
- Caliber: 5.56mm
- Thread Size: 1/2"x28
- Suppressor Compatibility: KAC QDSS-NT4