The Springfield Armory Hellion is a bullpup semi-automatic rifle chambered in .223 Rem / 5.56 NATO with a 16-inch barrel in OD Green. The bullpup layout keeps the overall length between 28.25" and 29.75" depending on stock position, while preserving a full-length 16-inch barrel -- a meaningful advantage over traditional shorter-barreled rifles in the same overall length class. 
 

Key Specifications 

• SKU: 2024027901 
• UPC: 706397976439 
• Condition: New in Box 
• Finish: OD Green (Applied Finish) 
• Safety: Ambidextrous Safety Lever 
• Trigger: Standard 
• Grip: Standard 
• Stock: Adjustable with Cheek Riser 
• Weight: 8 lbs 
• Sights: Low Profile Flip-Up Front & Rear 
• Overall Length: 28.25" - 29.75" 
• Barrel Twist Rate: 1:7" 
• Barrel Length: 16" 
• Capacity: 10+1 rounds 
• Action Type: Semi-Auto 
• Caliber/Gauge Options: .223 Rem / 5.56 NATO 
   

Detailed Features 

 
The five-position adjustable stock with cheek riser accommodates different length-of-pull preferences, and the ambidextrous safety lever and charging handle make it workable for left-handed shooters. The barrel is threaded 1/2x28, so it accepts common muzzle devices including suppressors and compensators. Low-profile flip-up front and rear sights are included and fully adjustable.

Owners of the Springfield Hellion OD Green tend to be positive overall, particularly on the bullpup format. The compact footprint with a full-length 16-inch barrel is the most consistently praised aspect -- it handles better in tight spaces than a traditional rifle of comparable barrel length. Weight distribution also gets favorable comments compared to conventional AR-pattern rifles.

The main friction point is the bullpup learning curve. Shooters coming from traditional layouts often need time to adjust to the trigger feel and the magazine well position behind the grip. Trigger quality is noted as acceptable but not exceptional, which is typical of bullpup designs at this price point.

Accessory availability for the Hellion specifically is more limited than for AR-platform rifles, which matters for users who want to customize heavily. Price relative to features generates mixed opinions, with some considering it fair and others finding better value elsewhere in the bullpup category.