Knight Armament - 5.56 QDC 3-Prong Flash Suppressor Kit - 1/2"-28 TPI - 30555

The Knight's Armament 5.56mm QDC 3-Prong Flash Suppressor Kit (KAC PN: 30555) is KAC's signature 3-prong flash eliminator for 5.56mm rifles with 1/2"-28 TPI muzzle threading. The KAC 3-Prong Flash Eliminator is an extremely effective flash suppressor that also serves as the mounting platform for Knight's Armament QDC (Quick Disconnect Coupler) sound suppressors. Unlike typical open-prong flash hiders, KAC specifically engineered this device to eliminate sympathetic ringing — providing both outstanding flash suppression and acoustic benefits. Comes complete with a 7-piece shim kit and installation instructions for precise alignment.

• Part Number: 30555
• Thread Size: 1/2"-28 TPI (5.56mm / .223)
• Weight: 2.3 oz (65g)
• Length: 2.15" (53mm)
• Configuration: 3-prong flash eliminator
• Suppressor Compatibility: KAC QDSS-NT4 5.56 QDC and QDC/CQB suppressors
• Includes: 7-piece shim kit and installation instructions
• Manufacturer: Knight's Armament Company (KAC), Titusville, Florida, USA

Required mounting device for use with KAC QDC sound suppressors. Designed to eliminate both flash signature and harmonic ringing associated with prong-style flash hiders.