Springfield Hellion, Semi-automatic Rifle, Bullpup, 223 Remington/556NATO, 18" Hammer Forged Barrel, 1:7 Twist, 4 Prong Flash Hider, Matte Finish, Black, 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, 1 Gen3 Magpul PMAG HL918556B • Action: Semi-Automatic • Capacity: 30+1 • Finish: Black • Sights: Low Profile Flip-Up Dual Aperture Rear • Barrel length: 18 Hammer Forged 4150 Steel/ Melonite • Overall length: 30.25 Extended 31.75 Collapsed • 1:7 RH Twist/ BCMGUNFIGHTER Mod 3 GripBullpup Design 4-Prong Flash Hider Ambi, NR Charging Handle • Action: Semi-Auto • Capacity: 30 + 1 • Finish: Black Anodized • Sights: Low Profile Flip-Up Front/Rear • Barrel length: 18" • Overall length: 30.25" - 31.75" • 15in Free-Float MLOK Rail/ Ambi Bolt Release