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KAK Industry XM177 556NATO – Black
KAK Industry XM177Flash Hider556NATOFits AR-151/2x28Phosphate FinishBlackClone CorrectFeatures:4.678 Overall LengthHeat TreatedPhosphate CoatedCrush Washer Not IncludedClone Correct Muzzle Device for Colt 649/639/619/620 and XM177/177E1/177E2