The Eagle-15 Optics Ready Carbine (ORC) 15EA02 offers users a new level in versatility with its rail gas block. This will allow shooters to add on a wide variety of aftermarket sights. The Eagle-15 ORC remains true to delivering a valued based product with the same quality and commitment that is put into all Armalite rifles. - Caliber: .223 Rem - 5.56x45 - Barrel: HB Chrome Moly Straight Taper - Barrel Length: 16 - Gas System: Carbine Length - Twist Rate: 1:8 RH - Muzzle Device: Flash Suppressor - Front Sight Base: Gasblock with MIL-STD 1913 Rail (.293 +/- .010 lower than top of receiver) - Handguard: 6 Standard - Stock: 6-Position Collapsible - Upper Receiver: Forged Flat-Top with MIL-STD 1913 Rail 7075-T6 Aluminum - Lower Receiver: Forged 7075-T6 Aluminum - Safety: Standard - Trigger: Single Stage - Charging Handle: Standard - Finish: Hard Anodized Aluminum - Overall Length: 32.5 Collapsed - 35.50 Extended - Weight: 6.5lbs - Included: One 30-Round Magpul PMAG - Warranty: 1-Year Limited Warranty