The Springfield Armory Hellion bullpup rifle in 5.56 NATO with a black finish (brand part no. HL920556B) is a semi-automatic bullpup built around a full 20-inch barrel, placing the action behind the trigger for a compact 33.75-inch overall length despite the long barrel. Springfield Armory cuts a 1-in-7-inch twist into the barrel and feeds the rifle from a 30-round magazine, included standard. Low-profile flip-up front and rear sights ship standard, along with an ambidextrous safety lever for left- or right-handed shooters. Among bullpup semi-auto rifles, the Hellion favors shooters who want a full 20-inch barrel’s velocity in a compact bullpup footprint.

Key Specifications

• Chambered in 5.56 NATO.
• Operates as a semi-automatic bullpup rifle.
• Rate of twist is 1-in-7-inch.
• Features a 20-inch barrel.
• Overall length is just 33.75 inches.
• Feeds from a magazine with a 30-round capacity, included.
• Equipped with low-profile flip-up front and rear sights.
• The safety is an ambidextrous lever.
• Finished in black.

Frequently Asked Questions

Why is this rifle so compact despite the long barrel? Its bullpup layout places the action behind the trigger, fitting a 20-inch barrel into just 33.75 inches overall.

How many rounds does the included magazine hold? A 30-round magazine ships standard.

Buy the Springfield Hellion Bullpup Rifle

A full 20-inch barrel’s velocity in a compact bullpup footprint is exactly what the Hellion delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.