The Springfield Armory Hellion is a modern bullpup-style semi-automatic rifle chambered in 5.56 NATO/.223 Remington. Based on the Croatian VHS-2 rifle, it combines compactness with full-length barrel performance, making it suitable for various applications, including home defense and tactical use. 

• Barrel: 16" cold hammer-forged CMV steel with Melonite® finish

• Twist Rate: 1:7

• Overall Length: 28.25" to 29.75" (adjustable stock)

• Weight: 8 lbs (unloaded)

• Stock: Five-position adjustable with cheek riser

• Action: Short-stroke gas piston, semi-automatic

• Gas System: Two-position adjustable (Normal/Suppressed)

• Magazine Compatibility: Standard AR-15 STANAG magazines

• Controls: Fully ambidextrous, including safety, charging handle, magazine release, and bolt release

• Sights: Integrated flip-up iron sights with a five-position aperture rear and adjustable front

• Top Rail: Full-length Picatinny rail for optics mounting

• Muzzle Device: Four-prong flash hider on a threaded barrel (1/2x28)