The Spartan Armor Systems Hercules Level IV Ceramic Body Armor is a 10"x12" stand-alone plate constructed from an aluminum oxide ceramic and UHMWPE composite, designed and manufactured in Tucson, Arizona. Independently tested to surpass NIJ 0101.06 Level IV threat parameters, it defeats armor-piercing .30-06 M2 AP (black tip) — the hardest round in the NIJ 0101.06 test matrix. The Advanced Compound Curve (ACC) geometry contours to the torso for close body contact and unrestricted movement. Each plate weighs 6.25 lbs (2.83 kg) at 1.1" thick and arrives as a set of two. A 5-year warranty against manufacturer defects is included.

Who this is for

• Law enforcement officers and armed professionals who operate in environments where armor-piercing rifle threats are a realistic concern and need a plate that meets the highest standardized NIJ threat level.
• Preppers and civilian owners building a Level IV home-defense or emergency-preparedness kit who want ceramic construction without the weight penalty of steel at comparable protection levels.
• Plate carrier owners upgrading from Level III who are ready to step up to confirmed .30-06 M2 AP defeat capability in a 10"x12" format that fits the vast majority of standard plate pockets.

Ballistic performance

The Hercules Level IV plate is built around an aluminum oxide ceramic strike face bonded to a UHMWPE composite backer. Ceramic plates work by shattering a hard projectile's penetrator on first contact, with the UHMWPE backer absorbing and distributing residual energy. This construction allows a plate to defeat armor-piercing threats at a weight profile that steel cannot match at the same protection level.

The Hercules meets NIJ 0101.06 Level IV standards, which requires defeat of .30-06 M2 AP ammunition — a steel-core, black-tip penetrator traveling at high velocity. This is the top threat tier under NIJ 0101.06 and covers any handgun or rifle round rated at lower NIJ levels by definition. The plate is rated as a stand-alone system, meaning no soft armor backer is required for the NIJ-rated protection level to apply.

Plate compatibility and cut geometry

The Hercules ships in a 10"x12" footprint with an Advanced Compound Curve profile. ACC geometry curves along both the vertical and horizontal axes simultaneously, tracking the natural contour of the chest and reducing the gap between plate and body that flat or single-curve plates can leave at the edges. This translates to a more stable carry position in a plate carrier and less plate movement during dynamic activity.

The 10"x12" size fits the standard large plate pocket found on most plate carriers sold for that format. The 1.1" thickness is on the thicker end for ceramic plates, so verifying pocket depth with your specific carrier before ordering is worthwhile. Contact us if you need fitment confirmation before purchase.

Specifications

Fit and carrier compatibility

The 10"x12" ACC plate seats in any plate carrier with a standard large plate pocket. The 1.1" profile is thicker than most UHMWPE or steel plates in the same size class — confirm your carrier's pocket depth accommodates that dimension before ordering, particularly in low-profile or slick carriers with shallow pockets. As a stand-alone plate, no soft armor insert behind the plate is required for Level IV performance, though a trauma pad in front of the backer is a common add-on for additional backface deformation mitigation.

Frequently asked questions

Does the Hercules meet NIJ 0101.06 Level IV, or is it just tested to that level?

The Hercules is tested to surpass NIJ 0101.06 Level IV standards. For current CPL (Compliant Products List) listing status under that standard, check the NIJ's published list at nij.ojp.gov. Contact us if you need documentation for duty or procurement purposes.

What rounds does this plate stop?

The Hercules defeats .30-06 M2 AP armor-piercing ammunition — the Level IV test round — along with all lesser threats covered by NIJ 0101.06 Levels III, II, and IIA. This includes common intermediate rifle cartridges such as 5.56x45 and 7.62x51 FMJ at standard velocities. It is a stand-alone plate; no backer is required for rated performance.

What is the difference between Level III, Level III+, and Level IV?

NIJ 0101.06 Level III covers steel-core-free rifle threats up to 7.62x51 M80 ball. Level III+ is a vendor-specific designation — not an official NIJ tier — typically indicating defeat of 5.56x45 M855 or M855A1 steel-penetrator rounds that Level III does not cover. Level IV is the highest NIJ 0101.06 tier and requires defeat of .30-06 M2 AP armor-piercing rounds, which the Hercules achieves.

How heavy is a two-plate setup?

Each Hercules plate weighs 6.25 lbs, so a front-and-back setup totals 12.5 lbs of plate weight before the carrier, cummerbund, and any accessories. That is typical for a full ceramic Level IV setup. Steel Level IV alternatives tend to be heavier; UHMWPE-only Level III plates run lighter but do not reach the M2 AP threat tier.

Do I need a soft armor backer behind this plate?

No. The Hercules is rated as a stand-alone plate, meaning the NIJ 0101.06 Level IV protection applies without a soft armor panel behind it. A trauma pad placed between the plate and your body can help manage backface deformation, but it is not required for the ballistic rating to hold.

Can this plate be shipped to my state?

The Hercules cannot be shipped to New York or Connecticut due to state body armor restrictions. It is subject to US export regulations. Under 18 U.S.C. § 931, anyone with a federal felony conviction for a crime of violence is prohibited from purchasing or possessing body armor.