Springfield Armory Hellion 5.56 NATO 16 Inch Bullpup Rifle

Springfield Armory’s Hellion delivers superior ballistic performance in a compact, adaptable platform built around bullpup design, with the action positioned behind the trigger. The rifle incorporates a two-position adjustable gas block offering both suppressed and normal modes, paired with ambidextrous controls and a reversible case ejection system. A Picatinny top rail and flip-up iron sights—spring-loaded mechanisms that lock firmly in place until manually released—round out the sighting options. The Hellion accepts standard AR-15 pattern grips and features a polymer handguard with 9 M-Lok slots for accessory mounting. Each rifle ships with a soft case and two exterior magazine pouches designed to accommodate standard pattern AR-15 magazines.