Product Features & Specifications
Springfield Armory HL920556B Hellion Bullpup 5.56x45mm Rifle
The Springfield Armory® Hellion™ represents a radically unique and innovative approach to firearms design, helping to redefine perceptions of semi-automatic 5.56mm performance.
Featuring a “bullpup” configuration where the action is located behind the trigger, the Hellion 20” features a short overall length for compact handling, as well as a bayonet lug. The Hellion sports ambidextrous controls that work in concert with a reversible case ejection system. The result is a 5.56 that combines portability with potent performance.
QD Points
The Hellion comes with QD mount points on both sides of the 5.56mm bullpup, ensuring you can use the sling of your choice, arranged for use from either side.
20" Barrel
Outfitted with a four-prong flash hider, the 20" barrel is ribbed for enhanced cooling and features a Melonite® coating for corrosion resistance. An integrated bayonet lug is true to the original design.
Adjustable Gas System
The Hellion 5.56mm bullpup features a two-position adjustable gas block with “S” suppressed and “N” normal modes to adapt to conditions and ammo availability.
Rifle Case Included
A padded rifle case is included with each Hellion. The foam shell and adjustable interior Velcro straps ensure the rifle and any mounted optics are protected during transportation. The case also features two exterior magazine pouches for standard pattern AR-15 magazines.
Brand | Springfield Armory |
Series | Bullpup |
Model | Hellion |
Caliber | 5.56x45mm |
Barrel Length Range | 20" to 20.99" |
Gun Platform | Bullpup-Style |
Operating System | Gas |
Stock Finish Group | Black |
Capacity | 30+1 |
Stock Material | Synthetic |
Action | Semi-Auto |
OAL | 32.25"- 33.75" |
Hand | Ambidextrous |
Sights | Flip Up Front & Rear |
Barrel Finish | Black Melonite |
Barrel Material | Chrome Moly Vanadium |
Muzzle | 4-Prong Flash Hider |
Twist | 1:7" |
Grips | Black Bravo Mod 3 |
Rails | Picatinny |
Handguards | Polymer M-LOK |
Receiver Material | Polymer |
Safety | Ambidextrous Safety Lever |
Stock Type | Bullpup |
Stock Description | Adj w / Cheek Riser |
Barrel Description | Steel |
Barrel Length | 20" |
Max Capacity | 30 |
Receiver Finish | Black |
Weight | 8.39 lbs |
Stock Finish | Black |
Handguard Finish | Black |
SKU | HL920556B |
MPN | HL920556B |
UPC | 706397969455 |