The Springfield Armory Hellion is a bullpup semi-automatic rifle chambered in 5.56 NATO with a 16-inch barrel. The bullpup stock places the receiver behind the trigger group, keeping the overall package compact while retaining the full barrel length. It ships in gray with a 30-round magazine. 
 

Key Specifications 

• Brand: Springfield Armory 
• Model: Hellion 
• Caliber: 5.56 NATO 
• Action: Semi Auto 
• Capacity: 30+1 
• Barrel Length: 16 in 
• Color/Finish: Gray 
   

Detailed Features 

• Bullpup stock configuration for a compact footprint with a full 16-inch barrel 
• Chambered in 5.56 NATO; the listing also references .223 Rem compatibility 
• 30-round magazine capacity 
• Semi-automatic operation 
• Gray finish

Owners of the Hellion tend to praise its compactness relative to a standard AR-pattern rifle. The bullpup layout gives it a short overall length without cutting the barrel, which matters for muzzle velocity, and build quality draws favorable comments from most buyers. A recurring caveat is that the controls require adjustment time for shooters coming from a traditional layout.

Ambidextrous controls get specific attention from left-handed shooters, who consider the Hellion one of the few bullpups genuinely designed for both hands. Trigger feel is a common discussion topic: the linkage inherent to any bullpup adds a longer pull, and the Hellion gets mixed marks here depending on what shooters are used to.

Value opinion splits along use-case lines. Buyers looking for a range rifle or truck gun find the price reasonable for a bullpup from a known brand. Those expecting AR-level trigger feedback or immediate ergonomic comfort sometimes find the adjustment curve longer than expected.