Springfield Armory Hellion 5.56 NATO 18″ Bullpup 30+1

The Springfield Armory Hellion is a compact bullpup rifle chambered for 5.56 NATO that balances short overall length with effective ballistic performance. Its 18" barrel preserves velocity while keeping the platform maneuverable in confined environments. The design incorporates ambidextrous controls and a reversible case ejection system for adaptable right- or left-hand use.

Key Specifications

• Chambered for 5.56x45mm NATO (.223 Rem) for common NATO/.223-compatible loads.
• Barrel length is 18" for a compact yet capable profile.
• Rate of twist is 1:7 to stabilize a broad range of bullet weights.
• Standard capacity is 30 + 1 rounds with one included 30-round magazine.
• Unloaded weight is approximately 8.19 lbs for field handling and transport.
• Overall length ranges from 30.25" - 31.75" depending on stock position.
• Operates as a Semi-Auto platform for rapid follow-up shots.
• Gas system is a 2-position adjustable short-stroke piston for suppressed or normal operation.
• Equipped with flip-up front and rear sights for immediate, tool-free sighting.
• Stock is 5-position adjustable with cheek riser to fit a range of shooters and optics setups.

The Hellion delivers a modern bullpup layout with practical features for users who need a compact yet capable semi-automatic 5.56 platform. With user-adjustable gas settings, reversible ejection, and ambidextrous controls, it adapts to a variety of operating preferences and accessory configurations while retaining straightforward mechanical function.