Description
Description
Body Armor Orders: 5–10 Day Lead Time Before Shipping
Spartan Armor AR550 Level III+ steel plates at Civil TAC deliver dependable multi hit ballistic protection engineered for reliability across training operational environments and emergency preparedness applications. Manufactured from AR550 hardened ballistic steel and designed with an advanced triple curve ergonomic profile these plates provide improved torso conformity compared to flat or single curve steel armor while retaining exceptional impact resistance and long term service durability.
Available in shooter cut sizes 10×12 and 11×14 these plates integrate with standard plate carrier systems configured for steel armor inserts. Each plate includes full coat spall mitigation polymer encapsulation that covers the entire strike surface and edges minimizing secondary fragmentation risk resulting from projectile shatter events and protecting adjacent body regions including the neck arms and face during ballistic impact.
AR550 hardened steel offers structural resilience significantly exceeding composite ceramic alternatives under repetitive strike conditions. Ceramic plates fracture after impact creating localized vulnerability zones and requiring immediate replacement. In contrast steel plates retain protective integrity across clustered hits maintaining uniform protection throughout the entire plate surface. This characteristic positions Spartan Armor AR550 Level III+ steel plates as optimal solutions for training cycles competition use and deployment gear kits requiring multi use longevity.
Comfort improvements are achieved through the advanced triple curve geometry which contours naturally against the chest wall distributing plate weight more evenly while reducing pressure points. This ergonomic shaping improves breathing comfort while minimizing movement restriction under plate carriers during kneeling sprinting prone position transitions and extended wear duties.
Full coat spall mitigation technology provides passive fragment suppression performance. When ballistic threats impact hardened steel surfaces debris is produced through projectile deformation. The proprietary polymer coating traps and slows these fragments reducing secondary blowback hazards and increasing wearer safety margins. The encapsulation layer also improves abrasion resistance and corrosion prevention preserving ballistic integrity during transportation and daily use cycles.
Ballistic performance meets NIJ Level III+ criteria providing enhanced protection against high velocity rifle threats exceeding standard Level III performance under applicable testing conditions. Reference standards are based on the official body armor performance specifications published by the National Institute of Justice available at:
https://nij.ojp.gov/library/publications/ballistic-resistance-body-armor-nij-standard-010106
Multi hit durability remains a central advantage of AR550 steel armor. Unlike segmented ceramic inserts steel plates retain consistent ballistic barrier properties regardless of previous impacts enabling continued protection across multiple strike engagements without replacing fractured tiles.
Size options allow tailored coverage. The 10×12 shooter cut size is the industry standard for maximizing mobility while providing extensive vital organ protection and compatibility with most medium and large plate carriers. The 11×14 shooter cut expands coverage across broader torsos or enhanced protective role profiles while retaining the same contoured curvature for comfort stability.
Although heavier than ceramic based systems steel armor offers unmatched durability return on investment and high confidence for rigorous training or preparedness use cases. The advanced curve profile offsets perceived weight by improving balance distribution across the torso reducing wearer fatigue.
These plates are compatible with most modern plate carrier platforms. Additional soft armor or trauma pad layers may be added to improve energy dispersion and increase wear comfort under extended use.
Common applications include firearms instruction training programs competitive shooting protection rigs vehicle crew defensive kits preparedness storage systems home defense setups and personal protective equipment contingencies requiring durable ballistic solutions.
Spartan Armor AR550 Level III+ steel plates provide hardened ballistic protection triple curve comfort multi hit durability and full coat spall mitigation performance engineered for serious protective requirements across real world operational use.
Certified NIJ Level III+ Protection
NIJ Level III+ armor is tested to stop:
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7.62×51mm NATO M80 Ball
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5.56mm M193 FMJ
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7.62×39 AK-47 steel-core rounds
These steel plates are designed to withstand multiple hits without losing integrity.
📖 Learn more about the official NIJ Standard 0101.06 for Ballistic Resistance of Body Armor
SPECIFICATIONS
Material: AR550 hardened ballistic steel
Protection Level: NIJ Level III+
Profile: Advanced triple curve shooter cut
Spall Mitigation: Full coat polymer anti fragmentation encapsulation
Sizes Available:
• 10×12 inches SKU SAS-AR5501012-FC-ATC
• 11×14 inches SKU SAS-5501114-FC-ATC
Plate Placement: Front or rear carrier configuration
Carrier Compatibility: Standard shooter cut plate carriers
Multi Hit Rated: Yes
Legal & Shipping Info
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✔️ Civilian-legal in 48 U.S. states
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⚠️ Restricted in NY and CT
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📦 Ships in plain packaging without armor labeling
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🕒 Ships within 5–10 business days
🎥 Watch Product Video
Additional information
Additional information
| SELECT SIZE: | 10" x 12", 11" x 14" |
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Reviews (0)
AR550 – Level 3+ Steel Plates, Advanced Triple Curve, Full Coat Spall Mitigation [set of 2]
Price range: 349.95$ through 369.95$
Spartan Armor AR550 Level III+ steel plates feature hardened ballistic steel construction with an advanced triple curve ergonomic shape for increased comfort and mobility. Each plate includes full coat spall mitigation to reduce fragmentation risk during impacts while preserving steel durability. Offered in 10×12 and 11×14 shooter cut sizes for front or rear carrier placement, these plates deliver dependable multi hit ballistic protection for training, operational use, and preparedness loadouts.
Civil TAC will NEVER sell steel plates with only a base coat
Body Armor Orders: 5–10 Day Lead Time Before Shipping

![AR550 - Level 3+ Steel Plates, Advanced Triple Curve, Full Coat Spall Mitigation [set of 2] - Image 2](https://civiltac.com/wp-content/uploads/2025/12/SPARTAN-2.png)
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