Springfield Armory Hellion 5.56 NATO 16in Bullpup 10-Round

The Springfield Armory Hellion is a bullpup-configured semi-automatic rifle chambered in 5.56x45mm NATO. It pairs a 16 inch CMV Melonite® barrel with a compact overall length to improve portability while retaining a full-length barrel. The design includes ambidextrous controls and a reversible ejection system to support both left- and right-handed operation.

Key Specifications

• Chambered in 5.56x45mm NATO (.223 Rem).
• The barrel is a 16 inch CMV Melonite® 1:7.
• Action is semi-automatic.
• Overall length measures 28.25–29.75 inches.
• Gas system is a 2-position adjustable short-stroke piston.
• Bolt carrier group is proprietary Melonite-treated.
• Handguard is polymer with M-LOK attachment points.
• Stock is 5-position adjustable with cheek riser.
• Includes one 10‑round Magpul PMAG Gen M3 magazine.
• Sights are integrated flip-up front and rear (front elevation adjustable; rear windage adjustable with 5-position aperture).

Engineered for users who need a compact platform without sacrificing a full-length barrel, the Hellion balances maneuverability and practical utility for range use and restricted-locale ownership. Its adjustable piston system, ambidextrous controls, and robust accessory-ready handguard make it a versatile choice for those seeking a no-nonsense, modern bullpup configuration.