22800 Dewey Rd. Centerville, IA 52544 | 866.978.7103

King of Armor

Level IV 6″x6″ Side Plate SET of 2 (Model #1155SP)

(42 customer reviews)


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  • NIJ .06 Compliant Body Armor
  • Level 4 Body Armor is rated to defeat up to 30.06 M2AP
  • Each of RMA’s Level IV 6×6 side plates weight 2.47lbs


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SKU: RMA-1155sp-6x6-Set Categories: ,

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RMA’s Level IV (Model #1155sp) hard armor side plate SET is a cost effective, multi-hit rated, NIJ .06 compliant plate that offers superior Level IV protection to the vital organs above your hips. Professionally wrapped, water resistant, and manufactured 100% at RMA’s factory in Centerville, Iowa to defeat rifle rounds up to and including 30.06 M2AP rounds.

RMA is the most sought after brand of armor plates by law enforcement officers in the United States. We’ve proven to be the strongest, top engineered, and most efficient manufacturer in the country. Nobody else comes close. Owned and operated by a former police officer and US Marine who has worn armor in two careers and knows what you need.

Ballistic Threat Performance Specs

Ballistic Lab Report

Which Armor Is Right For Me?


  • Low Cost
  • 6″x 6″ Stand Alone side plate
  • 10 Year Manufacturer’s Warranty
  • Single-Curve
  • 2.47 lbs.
  • Thickness: 1″
  • Monolithic Ceramic & Polyethylene
  • 600 Denier Water Resistant Cover
  • Made in Centerville, IA – USA
  • RMA Hard Armor Warranty Policy


What Rounds Will Level 4 Body Armor Defeat?

According to National Institute of Justice compliance standards, level 4 body armor plates are required to defeat one 7.62×63 (30.06) M2AP round with a backface deformation of 44mm or less. In RMA’s independent testing, the model 1155 level 4 armor plate defeats between 2-3 of those rounds (depending on shot placement), while passing back face deformation requirements as well.

Each of RMA’s level 4 body armor plates are tested at NIJ approved testing laboratories, like Oregon Ballistics Lab (OBL), NTS-Wichita or others and our official test reports are listed available for anyone to see.

There are also many independent tests done on all of RMA’s Level 4 body armor plates which can been seen on RMA’s Youtube page. Or you can search Youtube for “RMA Armament Level 4 Body Armor” and see a large amount of independent tests and reviews of our armor.

RMA’s level 4 body armor plates can also defeat a wide array of other common rifle rounds such as m855a1, m855 green tip, 7.62x54r, m80 NATO, 7.62.39 msc and much more. Please see our Body Armor Ballistics Chart for a more basic representation of body armor ballistic standards.

You also may be wondering what can penetrate level 4 body armor as well? One of the most common rounds we get asked about is a .50 cal. Currently, the NIJ 0101.06/07 standard does not list .50 BMG as a test round – though in independent testing, our model 1189 level 4 body armor plate has stopped a .50 BMG from 100 yards. Here’s the evidence! It’s important to note that the plate held the round, the back face deformation and energy transfer would still be enough to kill you. Our advice? Don’t get shot by a .50 cal.

Can Civilians Own Level 4 Body Armor?

Absolutely. We sell Level 4 body armor to all law-abiding U.S. citizens, Law Enforcement Officers, First Responders, member of the Military, etc. There is only one exception. Because of state laws, Connecticut does not allow online sales of body armor. While it is legal to own armor in Connecticut as a civilian, purchasing it must be a face to face transaction.

It’s possible that more states will implement laws restricting body armor in the future, so it’s your job to know your state’s law’s regarding body armor.

However, it is illegal for any felon to own body armor in the United States.

How is Level 4 Body Armor Made?

Level 4 body armor is the highest level of body armor on the market, built to be the most rugged armor among all the levels. As such, the main components of all level 4 body armor is a ceramic strike face and a composite backer. But that’s where plates diverge between companies.

RMA builds its NIJ .06 certified 1155 level 4 armor plates with an alumina oxide ceramic strike face and a polyethylene composite backer. The ceramic serves to break apart the armor piercing rounds, which allows the composite backer to act as a catcher’s mitt and catch the remaining bullet fragments and reduce the energy impact transferred to the body.

As level 4 body armor goes up in price, it’s because it’s built with lighter weight ceramic (either silicon carbide or boron carbide) and a lighter polyethylene material used for a backer. Typically, the lighter the material, the more expensive it is. Please see the “Details” section on each of our product pages to see the materials RMA utilizes to manufacture them.

What Happens if I Drop My Level 4 Body Armor?

If you happen to drop your level 4 body armor, train with it, or are one of those guys who toss your rig around after you take it off, your armor from RMA should be just fine.

RMA’s level 4 body armor plates are built with a protective padding on the strike face to aid in the protection of the ceramic, ensuring it doesn’t crack under normal use. However, we do suggest that you take care of your armor as best you can, to ensure it performs to its highest level of protection.

Can I leave RMA Body Armor in My Car?

One of the most common body armor questions we get is in regards to our body armor’s temperature sensitivity. Simply put, RMA’s body armor will continue to work as intended in just about any temperature environment. During NIJ .06 certification testing, each plate is left in a temperature chamber for two weeks, where the temperature changes periodically, from temperatures as low as 5 degrees fahrenheit to a high of 194 degrees. The varying temperature changes over those two weeks ensure that the materials used in building armor plates can maintain their form and function. The temperature test is done on each test before it is ballistically tested for compliance.

So can you leave your RMA body armor in the trunk of your car in Texas, Florida, etc and rely on it to perform? Simply put. Yes.


**United States law restricts possession of body armor for convicted felons. Many U.S. states also have penalties for possession or use of body armor by felons. RMA Armament, Inc., is also unable to ship any body armor plates, Shields, etc. to the state of Connecticut. By purchasing body armor from RMA Armament, Inc., you are certifying that you have not been convicted of any crime that would restrict you from being able to purchase or possess body armor under any Federal or State laws. Furthermore, you are acknowledging that you do not intend to use the body armor for any criminal purpose. RMA Armament, Inc., does reserve the right to refuse to sell body armor to any person.


42 reviews for Level IV 6″x6″ Side Plate SET of 2 (Model #1155SP)

  1. Michael Mazerolle (verified owner)

    Great product. Great delivery time . I would definitely recommend this company !

  2. Justin (verified owner)

    Got to me quickly, and fit in my plate carrier perfectly! Very happy with the product!

  3. Jose Luis Salazar Jr (verified owner)

    Great product and fast shipping!!! Thanks RMA!!!

  4. Anonymous (verified owner)

    Plates look well built RMA is who i trust, wish i had them while i was active duty

  5. Robert (verified owner)

    Super fast shipping. Everything looks good! Great quality!!

  6. Daniel (verified owner)

    Very competitive pricing, lead time. For side plates was 4 to 5 weeks. They shipped within one week which was very impressive. You can tell RMA offer plates that are top notch in quality and capabilities and at a price that allows almost anyone to afford such an essential piece of equipment.

  7. Jack (verified owner)

    Delivered Early!

  8. Daley Saxton (verified owner)

    Have yet to be shot wearing these. But they seem really nice. Price is fair enough. Fills out the side panels on my LBT 6094 nicely. I’d recommend them to the homies. Depending on how 2021 goes, I may or may not get back to yall on the ballistic performance. Stay swole kings!

  9. Michael C. (verified owner)

    Very impressed with the quality of the side plates.

  10. Zachary T. (verified owner)

    Great quality. Curvature is just right for me.

  11. Anonymous (verified owner)

    Lighter than I’d expected. Great service.

  12. Albert B. (verified owner)

    They are out of the way very well built

  13. Anonymous (verified owner)

    The Plates comboed with the Banshee Elite 2.0 provided a snug fit for a 5’6″ 200lbs person. This plate carrier does require separate side plate pouches to equip the side plates. Very pleased with this product.

  14. Anonymous (verified owner)

    The only level IV sideplates on the market

  15. Christopher (verified owner)

    Fit I the side pouch is great.

  16. Andrew (verified owner)

    Came wrapped very well to ensure no damage to plates occurred during shipping which made me very happy

  17. Anonymous (verified owner)

    A great addition to the main plates to protect the heart and lungs from side shots.

  18. Abraham M. (verified owner)

    Very nice 6x6s. They’re appropriately thick, so I had to modify the Crye carrier a bit. Just slightly heavier than other composites, but obviously lighter than 500 steel.

  19. Anonymous (verified owner)

    Nice looking plates, Great quality, received the plates soon than expected. I definitely would recommend these.

  20. Mason S. (verified owner)

    Good side plates that do what they advertise. On the heavier side, but it’s not a complaint at the price point.

  21. Kenneth (verified owner)

    Awesome and Top Notch. I’d buy again!

  22. Major A. (verified owner)

    Fits well in my Condor plate carrier. Glad for the coverage from such a well made product

  23. Derek (verified owner)

    I like these plates. They serve their purpose which is to prevent getting hit in the side. My only wish is that RMA would utilize the lighter weight on the G2 armor plate with these littler guys.

  24. Michael W. (verified owner)

    Side plates shipped much more quickly than the full size front / back plates. Quality appears fantastic as always! Would recommend and I will be ordering again.

  25. Bryan Ruud (verified owner)

    Good service and quality appearing product

  26. Johnny S. (verified owner)

    Great lightweight set and covered in some nice moisture wicking fabric. Curved nicely and comfortable. Nothing more to say. If you need side plates, you can’t go wrong with these.

  27. Scott B. (verified owner)

    Great armor great price

  28. Anonymous (verified owner)

    Great plates

  29. Robert (verified owner)

    Great Price and quality and fast shipping.

  30. Clint Johnson (verified owner)

    high quality product

  31. Jason Freeburn (verified owner)

    These plates are perfect! This was my 3rd purchase from RMA. And it won’t be my last!

  32. Anonymous (verified owner)

    RMA is worth supporting. Great people and great products. Everything to date has been quality.

  33. Eric F. (verified owner)

    Wish I could have got these on the 99 dollars for a set deal but with all of the other discounts and near free shipping I can’t complain plates feel great and do not add much weight. Will buy one or 2 extra sets to store

  34. Jason (verified owner)

    Great deal! And excellent customer service. Keep up the good work!

  35. Anonymous (verified owner)

    These plates are my second purchase from RMA and built with the same quality and attention to detail as the full size plates. They fit perfect and

  36. Anonymous (verified owner)

    These small plates come in handy for vests that have side pocket for panels. A lot of armor vest that I have experienced only had soft panels so these level 4 side plates come in handy.

  37. Andrew P. T. (verified owner)

    Great 👍🏼 price 💵 for a great product!

  38. Nicholas (verified owner)

    Items are as described with fast shipping. Many fly by night companies do not do the heat, drop and water submersion testing per NIJ01.01.06 but claim “compliance” nearly all RMA products exceed these additional tests as well with certification. There’s no better product at that price. High grade armor at appropriate prices.

  39. THOMAS CROSBY (verified owner)

    Phenomenal company, outstanding customer service and prompt shipping. I genuinely enjoy doing business with this company!

  40. Armando (verified owner)

    Simply awesome not only that but I got that coffee from black rifle company and I am a happy man

  41. Aaron Elliott (verified owner)

    Awesome stuff! I’ve done some research on other companies. This is the place you want to get your armor.

  42. Antonio Gonzales (verified owner)

    Did not know that the plates were that small, i did not buy a vest with the need of side plates. But it looks to be a great product.

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