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FN AR-15 5.56 NATO 10.5″ Button-Rifled Barrel – Black
FN America Barrel10.5″556NATO1:7 TwistButton BroachedCarbine Gas SystemM16 ContourFits AR-15Matte FinishBlackFeatures:Carbine Gas System10.5 Barrel1:7 Twist
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FN AR-15 5.56 NATO 16″ Button-Rifled Barrel – Black
FN America Barrel16″556NATO1:7 TwistButton BroachedMid-Length Gas SystemM16 ContourFits AR-15Matte FinishBlackFeatures:Mid Length Gas System16 Barrel1:7 Twist
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FN AR-15 5.56 NATO 20″ Hammer Forged Barrel – Black
FN America Barrel20″556NATO1:7 TwistButton BroachedRifle Length Gas SystemM16 ContourFits AR-15Matte FinishBlackFeatures:Mid Length Gas System20 Barrel1:7 Twist