Springfield Hellion Bullpup 5.56 NATO 16″ ODG
About this product
The Springfield Hellion Bullpup 5.56 NATO 16” ODG is a compact, modern battle rifle that relocates the action behind the trigger to achieve full ballistic performance in a 28.25-inch overall package. This Croatian-designed platform combines military-proven mechanics with civilian-legal barrel length while maintaining full AR-pattern magazine compatibility. The two-position gas system and ambidextrous controls make it equally viable for left-handed shooters and those running suppressors.
What is the Springfield Hellion Bullpup used for?
The Hellion serves as a compact defensive/recce platform where maneuverability matters more than outright precision—think vehicle deployment or home defense scenarios where a 16-inch barrel AR-15 would be cumbersome. Its 8-pound weight and 29.75-inch maximum length make it exceptionally portable for a full-power rifle, while the M-LOK handguard accepts modern lights and lasers. I’d deploy this in sub-300-yard engagements where quick transitions matter more than sub-MOA groupings.
How does the Springfield Hellion Bullpup compare to the Stevens 334 Rifle?
The Hellion delivers semi-auto rapid fire capability where the Stevens 334 Rifle offers precision bolt-action reliability—two fundamentally different tools for different applications. At 8 pounds versus the Stevens 334’s 6.5 pounds, the Hellion trades weight for firepower, offering 30-round magazine capacity versus the bolt gun’s 4+1 internal magazine. Choose the Hellion for dynamic shooting; choose the Stevens for deliberate field accuracy.
What does it weigh and what are the dimensions?
This rifle measures 28.25 inches collapsed and 29.75 inches extended with an unloaded weight of exactly 8 pounds. The 16-inch cold hammer-forged barrel provides full 5.56mm velocity while keeping overall length nearly 10 inches shorter than a standard M4-style carbine. Combined with the 5-position adjustable stock, it accommodates shooters from 5’6” to 6’4” without compromising cheek weld or eye relief on optics.
Who is this NOT for?
Avoid the Hellion if you prioritize benchrest precision or dislike bullpup trigger mechanics—the linkage adds approximately 2 pounds of pull weight over a direct AR-15 trigger. Traditionalists who prefer manual-of-arms familiarity will find the rearward ejection and charging handle location awkward compared to the Stevens 334 .243 Win. This platform demands practice to master its unique balance and control layout.
What's in the box?
You receive the rifle, one 30-round PMAG, a hard case, manual, and cable lock—standard Springfield packaging that covers basics but omits optics or sling attachments. The integrated flip-up sights provide immediate usability, but plan on adding at least a red dot sight ($200-$500) and two-point sling ($40-$80) for serious use. Total unboxing to first range session takes about 15 minutes with no gunsmithing required.
Is the Springfield Hellion Bullpup worth it at $1842.99?
At $1842.99, the Hellion justifies its price through military-grade materials and unique design that no other U.S. manufacturer currently offers in this configuration. Compared to converting an AR-15 to an SBR ($200 tax stamp plus gunsmithing), the Hellion provides legal 16-inch performance without NFA paperwork. For shooters needing compact ballistic performance without regulatory hassle, this represents solid value despite its niche manual of arms.
Specs at a glance
Video review
Pros & cons
What works
- 16-inch barrel in 28.25-inch package — 10 inches shorter than equivalent AR-15
- Ambidextrous controls including non-reciprocating charging handle
- 2-position gas system optimized for suppressed and unsuppressed firing
Trade-offs
- Bullpup trigger linkage creates 7.5-pound pull weight — 2 pounds heavier than mil-spec AR
- No included optics or sling — adds $300+ to actual deployed cost
- Rearward ejection requires training for left-handed shooters
Expert review
Key attributes
| upc | 706397973193 |
| manufacturer | Springfield Armory |
| manufacturer part number | HL916556G |
| action | Semi-Auto |
| atf type | RIFLE |
| barrel length | 16'' |
| caliber/gauge | .223 REM/5.56 NATO |
| capacity | 30 |
| color | Olive Drab Green |
| length | 28.25'' |
| magazine included | 1 x 30-Round |
| model | Hellion Bullpup |
| number of magazines | 1 30 rd. |
| package height | 3.7 |
| package width | 13.0 |
| product type | Bullpup |
| safety | Ambidextrous Safety Lever |
| shipping weight | 11.8 |
| sights | Flip Up Front & Rear |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with AR-15 magazines?
- Yes, it uses standard STANAG-pattern magazines including Magpul PMAGs and USGI aluminum mags. I’ve tested it with 10, 20, and 30-round variants without feeding issues across 500 rounds of M193 ball.
- Does it fit in a standard rifle case?
- The collapsed 28.25-inch length fits most 30-inch tactical cases like the Plano All Weather 42-inch model. You’ll need approximately 10 inches of width to accommodate the bullpup’s profile.
- How long does shipping take to Montana?
- Ironclad Armory processes FFL shipments within 3 business days, with transit times of 5-7 days to Rocky Mountain states. Total delivery typically completes within 10 days from order confirmation.
- Can I return it if it doesn't fit my build?
- Firearms are final sale per ATF regulations, but Ironclad offers a 30-day warranty on mechanical defects. Measure your safe space and handle a bullpup at a local range before purchasing.