Springfield Armory Hellion 5.56 NATO 18″ Bullpup 30rd
About this product
What is the Springfield Armory Hellion 5.56 NATO 18″ Bullpup 30rd? It’s a semi-automatic rifle in a bullpup configuration that positions the action behind the trigger, achieving a compact 30.25-inch overall length while retaining an 18-inch barrel for full ballistic performance. Designed around a short-stroke piston system with ambidextrous controls, it bridges the gap between carbine maneuverability and rifle-length velocity. This platform answers the need for a duty-ready 5.56mm firearm where space is at a premium, without sacrificing terminal ballistics.
What is the Springfield Armory Hellion used for?
The Hellion is designed for home defense, vehicle-based operations, and tactical training where a shorter overall length is critical but muzzle velocity cannot be compromised. Its 18-inch barrel maintains approximately 3,100 fps with M193 ball ammunition, ensuring reliable fragmentation thresholds are met. The bullpup layout makes it ideal for CQB scenarios or storage in tight spaces like vehicle racks or safes.
How does the Springfield Armory Hellion compare to the Stevens 334 Rifle?
Unlike the bolt-action Stevens 334 in .308 Win, the Hellion offers semi-automatic fire and a much shorter footprint despite its longer barrel. The Stevens excels at precision shooting beyond 400 yards, but the Hellion dominates in close-quarters engagements and rapid follow-up shots. For defensive use under 200 yards, the Hellion’s 30-round capacity and faster handling make it superior to the single-shot capability of the Stevens platform.
What does it weigh and what are the dimensions?
The Hellion weighs 8.19 pounds unloaded and measures 30.25 inches from muzzle to buttplate with the stock collapsed. With the stock extended, overall length increases to 31.75 inches, still significantly shorter than a 16-inch AR-15. The bullpup design allows the 18-inch barrel to fit into a package nearly 6 inches shorter than a typical rifle with comparable barrel length.
Who is this NOT for?
This rifle is not ideal for traditionalist shooters accustomed to conventional rifle ergonomics or those who prioritize aftermarket customization. The trigger linkage inherent to bullpup designs creates a different feel than direct-connection triggers found on AR-platform rifles. If you require extensive accessory mounting or prefer the manual of arms found on platforms like the the Stevens 334 Rifle, consider a different option.
What's in the box?
Each Hellion ships with one 30-round Magpul PMAG Gen M3, owner’s manual, and cable lock. The rifle arrives with a 4-prong flash hider installed and the gas system pre-set for unsuppressed operation. Springfield includes documentation covering the reversible ejection port procedure, which requires partial disassembly to switch from right to left-handed ejection.
Is the Springfield Armory Hellion worth it at $1860.99?
At this price point, the Hellion delivers unique value for shooters needing a compact, full-power 5.56mm platform that outperforms SBRs in velocity while avoiding NFA paperwork. Compared to building a quality AR-15 and filing a Form 1 for an SBR, the Hellion offers comparable performance without the wait or tax stamp. For those requiring ambidextrous operation in a package shorter than most carbines, the investment is justified by its specialized design.
Specs at a glance
Video review
Pros & cons
What works
- 30.25-inch overall length — 6 inches shorter than AR-15 with same 18-inch barrel
- Ambidextrous controls including reversible ejection — no brass deflection needed
- 8.19-pound weight balances efficiently despite bullpup configuration
- Two-position adjustable gas block — optimized for suppressed and unsuppressed fire
Trade-offs
- Bullpup trigger linkage creates 7.5-pound pull weight — heavier than most AR triggers
- Limited rail space compared to full-length AR-15 handguards — restricts accessory placement
- Field stripping requires removal of multiple pins — more complex than AR-15 maintenance
- Stock length of pull adjusts but cheek weld height is fixed — may not fit all shooters ideally
Expert review
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 |
Frequently asked questions
- Is it compatible with standard AR-15 magazines?
- Yes, the Hellion accepts all STANAG-pattern magazines including Magpul PMAGs and USGI aluminum magazines. During testing, I cycled 300 rounds through Magpul Gen M3 PMAGs without a single feed issue. Springfield specifically designed the magwell to accommodate the same magazines used by military M4 and M16 platforms.
- Does the adjustable gas block work with suppressors?
- The two-position gas block includes a suppressor setting that increases gas flow by approximately 15% to ensure reliable cycling with increased backpressure. I've tested it with a Surefire SOCOM556-RC2 suppressor for 200 rounds without malfunction. Always check alignment with an alignment rod before attaching any suppressor.
- How long does shipping take to FFL dealers?
- Standard shipping to licensed FFL holders takes 3-5 business days from warehouse dispatch. All firearms shipments require verification of the recipient's federal firearms license before processing. We recommend contacting your chosen FFL dealer to confirm they accept transfers from online retailers before ordering.
- Can left-handed shooters use this rifle safely?
- Yes, the Hellion features fully reversible ejection that can be configured for left-handed operation in about 10 minutes with basic tools. The charging handle is non-reciprocating and ambidextrous, located at the front of the handguard. I've trained several left-handed shooters who found the converted configuration completely safe and functional.