Bushmaster M4-A3 Carbine XM15-E2S .223 Rem. 16" M4 Barrel with bayonet lug and flashider is NEW IN THE BOX. This rifle includes a 16" chromed lined M4 barrel, birdcage flashider, bayonet lug, A-3 sights (Removable carry handle), collapsible stock, 1:9" twist, 1-30rd. mag, sling, hardcase, owners manual/warranty and a lock. Please E-mail me if you have any questions or concerns. Thank-you for your time.