Caliber Armor
AR550 III+ Multi-Curve Body Armor
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AR550 III+ Multi-Curve Body Armor
Rifle-rated steel body armor engineered for dependable protection, ergonomic comfort, and long-term durability.
The Caliber Armor AR550 III+ Multi-Curve Body Armor is designed for individuals who need dependable rifle-rated protection without compromising comfort or mobility. Featuring an ergonomic multi-curve design, multiple size and cut options, and optional PolyShield® Spall Protection, these American-made steel armor plates provide reliable performance for law enforcement, military personnel, security professionals, and prepared civilians.
Certified select models meet NIJ Standard 0101.06 Level III+ requirements while offering protection against common rifle threats, including M855 green tip, M193, 7.62x39mm MSC, and 7.62x51mm M80 Ball. Whether you're building a plate carrier for duty, training, or personal preparedness, the AR550 III+ Multi-Curve Plate delivers dependable ballistic protection backed by American manufacturing.
Reliable Rifle-Rated Protection
When selecting body armor, dependable ballistic performance is the priority. The AR550 III+ Multi-Curve Body Armor is independently tested in NIJ-accredited laboratories, with select models listed on the NIJ Compliant Products List under NIJ Standard 0101.06 Level III+ Certification.
Designed to defeat multiple common rifle threats—including 5.56mm M855 Green Tip, 5.56mm M193, 7.62x39mm MSC, and 7.62x51mm M80 Ball—these plates provide dependable protection for professional and civilian applications alike.
Ergonomic Multi-Curve Comfort
Protective equipment is only effective when it can be worn comfortably for extended periods. The AR550 III+ Multi-Curve Plate features a one-piece pressed multi-curve design that follows the natural contours of the body, helping improve comfort, weight distribution, and overall mobility compared to traditional flat steel plates.
Unlike welded or segmented curve designs, Caliber Armor's manufacturing process maintains the structural integrity of the plate while creating an ergonomic fit that remains comfortable during extended wear.
Choose the Right Plate Configuration
Every mission and every user has different coverage requirements. The AR550 III+ Multi-Curve Body Armor is available in multiple cuts and sizes to accommodate a wide range of plate carriers and personal preferences.
Shooter's Cut
Designed to maximize mobility while maintaining protection over vital areas, Shooter's Cut plates offer excellent freedom of movement and easier firearm shouldering. They remain one of the most popular choices for training, law enforcement, and civilian preparedness.
SAPI Cut
SAPI-style plates provide additional upper-body coverage with a military-inspired profile. This design is commonly selected by users seeking increased coverage while maintaining compatibility with many modern plate carriers.
Available Sizes:
- 8" × 10"
- 10" × 12"
- 10" × 12" SAPI
- 11" × 14"
Optional PolyShield® Spall Protection
Steel armor plates can redirect projectile fragments away from the point of impact. PolyShield® Spall Protection is an optional protective coating designed to help contain this fragmentation while providing an additional layer of confidence during use.
Choose the finish that best fits your needs:
PolyShield® Spall Protection
- Helps reduce projectile fragmentation (spall)
- Adds an additional protective coating over the plate
- Ideal for users seeking enhanced fragment mitigation
Standard Coating
- Corrosion-resistant finish
- Protects the plate from moisture and environmental exposure
- Designed for users who do not require additional spall protection
Compatible with Most Plate Carriers
The AR550 III+ Multi-Curve Body Armor is compatible with most standard plate carriers designed to accept Shooter's Cut or SAPI armor plates.
Compatible carriers include:
- Crye Precision JPC 2.0
- 221B Tactical QRF Low Visibility Minimalist Plate Carrier
- Condor MOPC
- 5.11 TacTec Plate Carrier
- And many more
Built for Duty, Training & Preparedness
The AR550 III+ Multi-Curve Plate is well suited for a variety of professional and personal applications, including:
- Law enforcement
- Military personnel
- Security professionals
- Emergency preparedness
- Tactical training
- Range use
- Personal defense planning
Made in the USA
Every AR550 III+ Multi-Curve Body Armor plate is proudly manufactured in Louisville, Kentucky using high-quality American materials and manufacturing processes.
Specifications
Available Sizes
- 8" × 10"
- 10" × 12"
- 10" × 12" SAPI
- 11" × 14"
Available Finishes
- Standard Coating
- PolyShield® Spall Protection
Certification
- Select models certified to NIJ Standard 0101.06 Level III+
Manufacturing Tolerances
- Thickness: ±1/8"
- Width & Length: +0.00" / -0.25"
- Weight: ±5%
Product Features
- NIJ Level III+ Certified (select models)
- Independently tested against common rifle threats
- Stops M855 Green Tip, M193, M80 Ball, and 7.62x39 MSC
- Ergonomic one-piece multi-curve design
- Shooter's Cut and SAPI configurations
- Optional PolyShield® Spall Protection
- Corrosion-resistant finish
- Compatible with most standard plate carriers
- Multiple size options available
For Details on Warranty:Click Here
EAR & ITAR Notice:
Body Armor and Ballistic Shields are controlled under Export Administration Regulations (EAR) or International Traffic in Arms Regulations (ITAR) and is subject to the export control laws of the US Government. Export or re-transfer by any means to any foreign end user or for any other end use, whether in the US or abroad without written approval of the US Department of Commerce or Department of State is prohibited. The sale, transfer, transportation, or shipment outside of the US of any product prohibited or restricted for export without complying with US export control laws and regulations, including proper export licensing, documentation or authorization, is strictly prohibited and may result in civil penalties and/or constitute a federal crime.