Springfield Armory Hellion 5.56 NATO 18″ Bullpup 30rd
About this product
The Springfield Armory Hellion is a bullpup-configured semi-automatic rifle chambered for 5.56 NATO that combines a compact overall length with an 18-inch barrel for enhanced ballistic performance compared with shorter-barreled platforms. The action sits behind the trigger for a shorter footprint while retaining an 18″ barrel. Controls are fully ambidextrous, featuring reversible case ejection, an ambidextrous non-reciprocating charging handle, and a two-position adjustable gas block for suppressed and standard operation.
Key Specifications
- The caliber is 5.56x45mm NATO (.223 REM).
- The barrel measures 18 inches.
- The rate of twist is 1:7.
- The magazine capacity is 30+1 rounds.
- The weight is 8.19 lbs.
- The overall length is 30.25 – 31.75 inches.
- The gas system is a 2-position adjustable short-stroke piston.
- The muzzle device is a 4-prong flash hider.
- The handguard is polymer M-LOK.
- Includes one 30-round Magpul PMAG Gen M3.
With its bullpup layout and features focused on adaptability — reversible ejection, ambidextrous controls, adjustable gas settings, and a compact overall length paired with an 18″ barrel — the Hellion is engineered for users who need a capable, space-efficient 5.56 NATO platform. Its configuration suits applications where maneuverability and full-power ballistics are both priorities, and the included magazine and M-LOK handguard provide a practical baseline for mounting mission-specific accessories.
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Specs at a glance
Key attributes
| upc | 706397969448 |
| manufacturer | Springfield Armory |
| manufacturer part number | HL918556B |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel length | 18'' |
| caliber/gauge | .223 REM/5.56 NATO |
| capacity | 30 |
| color | Black |
| length | 31.75'' |
| magazine included | 1 x 30-Round |
| model | Hellion Bullpup |
| number of magazines | 1 30 rd. |
| package height | 3.9 |
| package width | 12.9 |
| product type | Bullpup |
| safety | Ambidextrous Safety Lever |
| shipping weight | 12.0 |
| sights | Low Profile Flip-Up Front/Rear |
| sights type | Adjustable Sights |