Springfield Armory Hellion 5.56 NATO 18-inch 10+1

The Springfield Armory Hellion is a semi-automatic bullpup rifle chambered in .223 Rem/5.56 NATO with an 18-inch barrel and a 10+1 capacity. Its bullpup layout shortens overall length while retaining full-length barrel performance for duty, home, or range use. The Hellion ships with low-profile flip-up front and rear sights and a 1/2x28 threaded muzzle for common muzzle devices.

Key Specifications

• The action is Semi-Auto for standard semi-automatic operation.
• Chambered in .223 Rem/5.56 NATO per manufacturer data.
• The barrel measures 18 inches to preserve ballistic performance in a compact platform.
• The magazine capacity is 10 + 1 as supplied.
• The overall length is 30.25 - 31.75 inches depending on configuration.
• The unloaded weight is 8 lbs. 3 oz. as listed.
• The rate of twist is 1-in-7" for stabilization of appropriate projectiles.
• The muzzle is threaded 1/2x28 to accept standard muzzle devices.
• The finish is Black Anodized for corrosion resistance and appearance.
• The design includes a Bullpup design, 4-prong flash hider, and Ambi, NR charging handle.

Compact yet ballistically capable, the Hellion suits shooters who need a shorter handling package without sacrificing barrel length. Its feature set and finish make it appropriate for range use, duty applications, and owners who prioritize a compact, modern platform with ambidextrous controls and standard accessory compatibility.