Springfield Hellion, Semi-automatic, Bullpup, 223 Remington/556NATO, 18 Hammer Forged Barrel, 1:7 Twist, 4 Prong Flash Hider, Matte Finish, Black, Single Point Sling, Crimson Trace CTS-103 Red/Green Dot, BCM MOD 3 Grip, 5-Position Adjustable Stock with Cheek Riser, Front/Rear Flip Sights, 2-Position Short Stroke Gas Piston, Ambidextrous Safety, Ambidextrous Charging Handle, MLOK Handguard Reversible Ejection System, 30 Rounds, 2 Magazines HL918556B-GU25 The Springfield Armory Hellion represents a radically unique and innovative approach to firearms design, helping to redefine perceptions of semi-automatic 5.56mm performance. Featuring a bullpup configuration where the action is located behind the trigger, the Hellion 18" features a short overall length for compact handling along with enhanced ballistic performance due to its longer barrel. Ambidextrous controls work in concert with a reversible case ejection system for maximum adaptability. The result is a 5.56 that combines portability with potent performance