.223 Remington. 16" barrel length, 17.5" with compensator. SN: 580-84901. Parkerized stainless steel finish. Black synthetic stock has checkering to semi pistol grip and forearm, with vented black metal alloy handguard. Semi automatic rifle with adjustable peep rear sight, scope mount bases, and blade front sight with ear protectors. Item features a muzzle compensator, double sling swivels, and a grooved rubber recoil pad. Item is without magazine.