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Samson Manufacturing Sig 556 Samson Tactical Accessory Rail System – Black
Samson Manufacturing Corp. Samson Tactical Accessory Rail SystemForearmFits Sig 5563-HoleFree FloatBlackFeatures:STAR-Samson Tactical Accessory Rail SystemFits Sig 556 (3-hole)Top rail 19 inches longFree FloatRails 1913 Picatinny Mil-spec