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FN America / FN HerstalFN 36421 AR-15 5.56x45mm NATO 16" Carbine Length Gas System, Black Phosphate Cold Hammer Forged Chrome LinedAdd to cartAR BarrelsFN 36421 AR-15 5.56x45mm NATO 16″ Carbine Length Gas System, Black Phosphate Cold Hammer Forged Chrome Lined
$349.00 Add to cartFN 36421 AR-15 5.56x45mm NATO 16″ Carbine Length Gas System, Black Phosphate Cold Hammer Forged Chrome Lined