SKU: KNAC30555
UPC: 819064010944
The KAC 556 QDC Flash Eliminator 1/2x28 from Knights Armament Company is a dual-purpose muzzle device engineered to suppress muzzle flash while serving as a quick-detach platform for sound suppressors. This 3-prong flash hider design actively neutralizes the rifle's flash signature across a full range of loadings—critical for maintaining concealment during low-light operations, night shooting, or tactical environments where muzzle flash can compromise shooter vision or give away position. The QDC interface allows seamless attachment and removal of compatible Knights Armament suppressors without tools, making it the preferred choice for operators who need modularity without sacrificing flash suppression.
Beyond flash elimination, KAC engineered this design to eliminate harmonic ringing—the sympathetic vibration that traditional open-prong designs produce. This reduces weapon handling fatigue during extended shooting and improves accuracy by minimizing muzzle movement. The 1/2x28 thread pitch accommodates standard 5.56 NATO rifle platforms. Installation is straightforward, and the package includes a 7-piece shim kit that ensures proper timing and indexing on your barrel's threads, accommodating minor runout variation without requiring gunsmithing. At 0.25 lbs, the device adds minimal weight while maintaining a compact profile that doesn't obstruct standard rail-mounted optics or compromise ergonomics in close-quarters scenarios.
This muzzle device suits shooters running suppressed-ready 5.56 platforms who demand both flash control and modular sound suppression capability. Whether operating on tactical teams, conducting precision rifle training, or building a dedicated night-fire upper, the KAC 556 QDC Flash Eliminator delivers the reliability and performance Knights Armament is known for. The quick-detach interface eliminates the need for multiple muzzle devices—one platform handles both unsuppressed and suppressed configurations, streamlining maintenance and reducing parts inventory.
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