Caliber Armor
AR550 III+ Multi-Curve Body Armor
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Size
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Size
Finish
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
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.
Very comfortable. The plates have an ergonomic curvature and allow for good movement and secure fit.
Thank you for the review. Glad the multi-curve fits great. We are very proud of that curve!
I wasn't sure at first, but when I put on the carrier, it was surprisingly comfortable.
I think you get more bang for your buck with Caliber Armor.
Seems reliable.
Thank you for the review!
I like them but if your over 6'3 get the longer plates
Good feedback. Thank you!
Have about 30 hours of wear time so far. The "rubber padded shoulder straps" leave miles to be desired. Flimsy and don't support the weight like I expected. Other than that, pretty decent.
Cody, thanks for taking the time to write a review and your feed back. Let us know if that causes any issues.
It is cosmetically very nice and fits well, I also like how easily it slides into the carrier.
Thanks for taking the time to leave us a review. Our staff takes great pride in the details down to the finish of our product. Glad you are happy with the purchase. 🙏
Quick and complete delivery. Well Packed, and exactly what I ordered. Looks like a quality product!
Thanks for the feedback! We're so glad you are a satisfied customer.
Very satisfied with the body armor. Excellent quality and fit.
Thank you for the review! So glad you are satisfied with your purchase.
Excellent craftsmanship, decent weight.
I ordered the wrong size plates for my carrior I have at home here and wanted to shout out shout out Michelle from sales for trying to help me out and get me the right size product. Big thanks!
Love it! Lil heavier than the Lvl 4 ceramic but will take more hits and is about a ½" slimmer. Very happy with my Caliber Gear!
We find that that thinness makes a huge difference. Multi-curve is key. Great choice. Thanks for the review and for trusting Caliber Armor!
These plates are OUTSTANDING They were exactly what I was looking for at an AMAZING price, especially when I was able to combine the generous military/veteran discount on top of the great sales price. I definitely recommend these plates to anyone in search for quality plates and not wanting to be overly charged like some other companies! But most importantly, I will return to Caliber based on the Customer Service I received. Huge shout out to Jessika!!! She was a pleasure to work with, you don't find too many individuals that care as much as she does about providing such a quality experience for customers. Thank you!
Great service and products
Arrived fast, excellent quality
The plates seem to be very well made and fit comfortably.
I like it very much.
Very comfortable multi-curve for my minimalist carrier.
The form-fit improves concealment under a cover garment.
Great deal for the $$, and quick shipping.
Looks great, fits my MOPC perfectly, feels great when worn in the carrier. Held up really well versus a NERF attack from my kids. I pray that is the ONLY field test it will ever face, but I will amend my review should the situation arise. *grin*
Works just as advertised. Fits my GH outer carrier perfectly. Lightweight and not restrictive.
Very well made plate..nice finish..great price..soft panels are very nice, great gear ..like to see/do more indie testing..I'm KY made so already have my support and continued business
Allows for better arm flexibility and a tight hug that limits bouncing. The smooth coating makes loading into a carrier fast. Great product!
Great product
Support local. Support quality. Best plates hands down. Will never order anywhere else !
The design is probably the biggest strength, the curves fit so perfectly over my chest, there is no pressure point, all of the weight is distributed evenly. Second most notable is the quality of the spall coating and the finished product in general. The coating is super thick and really gives confidence, the overall premium finish makes me feel like I got my money's worth. I am happy!
I can only go by what I've seen on YouTube. I sure as heck don't want to be shot to find out that it works, but it does appear to be robust and strong!
Love to do a YouTube review with some WWII battle rifles and see how this armor holds up. :grin:
The Armor that I received was exactly what I was looking for. the service was excellent also. thank you!
I put the plates in my Agilite K19 and they are Hands Down the most comfortable ones I own. The Multi Curve fits like a glove and the pressure points from the previous Plates are gone. I plan on purchasing another set very soon. Thanks for a Product that actually works as Described.
Great plates at a great price! The 8x10s are perfect for smaller framed individuals.
Fast delivery good fit.
Plate armor arrived super quick and in perfect condition. The multi curve feels great and the poly-spall coating gets great reviews and looks sharp. I chose a Shooter cut front so the plate feel great in the in a two hand stance and the SAPI option for the rear for a little more coverage. I am more that satisfied with this transaction and would certainly recommend CA for your armor requirements.
The weight isn't too bad.
Fits well and comfortable.