SPECIFICATIONS THE RRAGE CARBINE CALIBER: 5.56MM NATO CHAMBER FOR 5.56MM AND .223 CALIBER LOWER RECEIVER: FORGED RRA LAR-15 UPPER RECEIVER: EXTRUDED ALUMINUM A4 WITH PORT DOOR/NO FORWARD ASSIST BARREL: 16-INCH LIGHTWEIGHT CHROME MOLY, 1:9 TWIST MUZZLE: A2 FLASH HIDER / 1/2–28 THREAD GAS SYSTEM: CAR LENGTH, WITH LOW PROFILE GAS BLOCK TRIGGER: RRA SINGLE STAGE …