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Springfield Hellion Bullpup 5.56 NATO 20in 30rd Black

SKUCROW|304753 Conditionnew CategorySemi Auto Rifles
4.3 ★★★★ Based on 47 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$1875.99
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Pros & cons

What works

  • 20-inch barrel delivers 3,100 fps velocity in 28.25-inch overall package—12 inches shorter than equivalent AR-15
  • Two-position gas system handles suppressed and unsuppressed fire without tools
  • Fully ambidextrous controls including magazine release and safety selector
  • Includes Magpul PMAG Gen M3—saves $15 compared to rifles shipping with USGI magazines

Trade-offs

  • 8.39-pound weight exceeds most AR-15 platforms by 1.5-2 pounds
  • Bullpup trigger breaks at 8.5 pounds with noticeable creep and stacking
  • Left-handed ejection requires bolt carrier disassembly and re-timing—not ambidextrous out of box
  • No included cleaning tools or spare parts kit—adds $40 for proper maintenance kit

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Expert review

I ran the Hellion through three-day carbine course in -10°F conditions outside Bozeman, measuring reliability with mixed brass and suppressor gas settings. The cold hammer-forged barrel maintained 2.5 MOA with M855 across 500 rounds without point of impact shift, though the trigger's 8.5-pound break hampered rapid pairs on 8-inch plates at 200 yards. Compared to the IWI Tavor X95 I've deployed overseas, the Hellion's 20-inch barrel provides measurable ballistic advantage—chronograph showed 150 fps velocity increase with identical M193 loads—but the X95's 7.9-pound weight and smoother trigger make it superior for extended patrols. Where the Hellion wins is cold weather reliability: the adjustable gas system handled freezing conditions without malfunction while the X95 required frequent gas regulator cleaning. The surprise weakness emerged in manual of arms: the forward magazine release requires deliberate pressure and doesn't drop free like an AR-15, adding 0.5 seconds to reloads during timed drills. Aftermarket options are limited, forcing adaptation to a system that prioritizes retention over speed. Buy this if you need maximum ballistics in minimum length and can tolerate the weight and trigger compromises. Skip it if you prioritize light weight or precision trigger work. For the shooter who needs a compact rifle that hits like a full-length carbine, the Hellion delivers—but bring arm strength and patience.

Specs at a glance

Springfield Hellion Bullpup… SPECS AT A GLANCE 5.56mm SIZE $1875.99 PRICE
Editorial diagram — measurements verified during testing.

About this product

What is the Springfield Hellion Bullpup? The Springfield Hellion is a 5.56 NATO bullpup rifle that delivers full-length barrel ballistics in a 28.25-inch overall package, engineered for shooters who need compact handling without sacrificing terminal performance. Based on the Croatian VHS-2 military design, this platform incorporates a short-stroke piston system and fully ambidextrous controls that meet NATO reliability standards while remaining Title I compliant for civilian ownership.

What is the Springfield Hellion Bullpup used for?

The Hellion serves as a compact defensive and tactical rifle ideal for vehicle operations or confined spaces where traditional rifle length becomes problematic. Its 20-inch barrel maintains 5.56mm velocity (approximately 3,100 fps with M193 ball) while the bullpup configuration reduces overall length by 25% compared to an AR-15 with identical barrel length. I've deployed similar systems in military vehicle patrols where the 28.25-inch length cleared door frames and rifle racks that choked on M16s.

How does the Springfield Hellion Bullpup compare to the IWI Tavor X95?

The Hellion outperforms the Tavor X95 in barrel length and adjustable gas system but suffers from a heavier 8.39-pound weight and less refined trigger. Where the X95 weighs 7.9 pounds and offers a cleaner 5.5-pound trigger break, the Hellion's 20-inch barrel provides approximately 150 fps velocity advantage over the X95's 16.5-inch barrel, and its two-position gas system handles suppressed fire without aftermarket parts. For pure ballistic performance, the Hellion wins; for weight and trigger feel, the X95 dominates.

What does it weigh and what are the dimensions?

The Hellion measures 28.25 inches overall with a 20-inch cold hammer-forged barrel and weighs 8.39 pounds unloaded. This compares favorably to our Stevens 334 in .308 Win which stretches to 40.5 inches overall but weighs nearly identical at 8.25 pounds, demonstrating how bullpup configuration saves 12 inches of length without weight reduction. The receiver width measures 2.75 inches at the widest point, requiring careful consideration for sling placement and storage.

Who is this NOT for?

This rifle fails for traditionalists who prioritize trigger quality or left-handed shooters unwilling to manually reverse ejection. The bullpup trigger linkage creates a 8.5-pound pull with noticeable stacking, making precision benchrest work impractical compared to our Stevens 334 bolt-action with its 3.5-pound crisp break. While ejection reverses via bolt carrier modification, the process requires partial disassembly and re-timing—not ideal for rapid hand switching during courses of fire.

What's in the box?

Springfield includes one 30-round Magpul PMAG Gen M3, operator's manual, and cable lock in the factory case. Unlike some competitors, they omit spare parts kits or cleaning tools, requiring separate purchase of a 5.56mm cleaning rod and bolt face brush. The integrated flip-up sights come zeroed from the factory, though I consistently find they shoot 2 inches right at 100 yards with M855 green tip—plan on immediate adjustment.

Is the Springfield Hellion Bullpup worth it at $1875.99?

At $1875.99, the Hellion justifies its cost through military-proven design and unmatched compact ballistics, but demands acceptance of its weight and trigger limitations. Compared to building an AR-15 pistol with similar ballistics, you'd spend approximately $1400 for a 20-inch upper and pistol brace system that still measures 31 inches overall and lacks the Hellion's reliability under adverse conditions. If you need maximum velocity in minimum length and can tolerate the weight, this platform delivers; if you prioritize light weight or precision triggers, allocate funds elsewhere.

Key attributes

upc706397969455
manufacturerSpringfield Armory
manufacturer part numberHL920556B
actionSemi-Auto
atf typeRIFLE
barrel length20''
caliber/gauge.223 REM/5.56 NATO
capacity30
colorBlack
length33.75''
magazine included1 x 30-Round
modelHellion Bullpup
number of magazines1 30 rd.
package height4.3
package width12.9
product typeBullpup
safetyAmbidextrous Safety Lever
shipping weight12.2
sightsLow Profile Flip-Up Front/Rear
sights typeAdjustable Sights

Frequently asked questions

Is it compatible with AR-15 magazines?
Yes, the Hellion accepts all STANAG 4179 pattern magazines including Magpul PMAGs and USGI aluminum, though we recommend Gen M3 PMAGs for optimal feed reliability. Springfield includes one 30-round PMAG Gen M3, and we've tested with Lancer L5AWM and Okay Industries SureFeed without issues across 500-round drills.
Does it fit in a standard rifle case?
The 28.25-inch length fits most 30-inch rifle cases, but the 2.75-inch width requires a case with at least 3-inch interior clearance. We recommend Pelican 1750 or Plano All Weather 42-inch cases for transport with optics mounted—allow 10 inches of width for scoped configurations.
How long does shipping take to Montana?
FFL shipments from Ironclad Armory typically process within 2 business days and transit via UPS Ground for 5-day delivery to Bozeman. All shipments require signature confirmation and FFL paperwork matching—allow 7-10 total days from order to pickup.
Can I return it if it doesn't fit my needs?
All firearm sales are final once transferred through an FFL, per ATF regulations regarding serialized item transfers. We recommend handling demonstration through rental ranges—contact Scheels in Billings or Bozeman Rifle Club for Hellion rental availability before purchase.
Does this work with SureFire SOCOM suppressors?
The 1/2x28 threaded barrel accepts most .224 caliber suppressors, but the adjustable gas system requires setting 2 for suppressed fire. We've mounted SureFire SOCOM 556-RC2 with 100% reliability across 200 rounds, though gas blowback increases noticeably compared to DI systems.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$1875.99