FN M4 COLLECTORS SERIES 5.56NATO Listing ID: 3075065

a used FN M4 Collector's Series chambered in 5.56nato. This semi auto rifle features a 14.5" pin & weld barrel with birdcage style flash hider, quad rail handguard with Knights Armament rail covers, Knights Armament vertical foregrip, A2 style front sight post, adjustable rear iron sight, standard AR15 controls and adjustable stock.