16in I barrel chambered in .223 Wylde with 1/8 twist. F1 to Watchtower transition rifle. Rifle is new. Originally serialized and an F1 FDR-15 (forged upper and lower) but has large watchtower logo on magwell and comes with all standard type-15 furniture and grey anodizing. Rifle has m16 cut lower. Upgrades include PVD coated Durabolt, ambi charging handle, ambi safety selector, Rise Armament single stage set trigger with anti-walk pins. Case, magazine, lock and warrantee card included