What Is the NIJ?
The National Institute of Justice is the research and standards arm of the U.S. Department of Justice. When it comes to body armor, the NIJ sets the benchmark. Their standard, NIJ Standard 0101.06 (with 0101.07 currently in development), defines how ballistic-resistant armor is classified, tested, and rated.
Every protection level corresponds to specific threats: calibers, velocities, and round types. The ratings exist so buyers, agencies, and departments can compare armor on an objective, standardized scale rather than relying on manufacturer marketing alone.
Understanding these levels is the first step to making an informed decision about your protection. Below, we break down every NIJ level: what it stops, what it doesn’t, and where each one fits.
NIJ Rating Breakdown
The table below covers each NIJ protection level from lightest to heaviest. Two rows are highlighted. Those are the levels we chose for Silent Valor armor.
| Level | Threat Type | Tested Rounds | Armor Type | Notes |
|---|---|---|---|---|
| IIA | Light handgun | 9mm FMJ at 1,165 ft/s, .40 S&W FMJ at 1,065 ft/s | Soft armor | Older standard. Thinnest and lightest soft armor, but rarely used in modern applications. Largely superseded by Level II and IIIA. |
| II | Standard handgun | 9mm FMJ at 1,245 ft/s, .357 Magnum JSP at 1,430 ft/s | Soft armor | Still common in concealable vests worn by law enforcement for daily duty. Lighter than IIIA but does not cover magnum-class threats. |
| IIIA We sell this | Magnum handgun | 9mm FMJ at 1,400 ft/s, .357 SIG FMJ at 1,470 ft/s, .44 Magnum SJHP at 1,430 ft/s | Soft armor | The highest-rated soft armor. Stops virtually all common handgun rounds. The most widely used protection level for personal and law enforcement use. This is the level of our soft armor inserts. |
| III | Rifle | 7.62x51 NATO M80 ball at 2,780 ft/s (6 rounds) | Hard plate | Stops standard rifle rounds including 7.62 NATO. However, standard Level III does not stop 5.56x45 M855 (green tip) or M193, a critical gap many buyers overlook. |
| III+ We sell this | Rifle (enhanced) | 7.62x51 M80, 5.56x45 M855 (green tip), 5.56x45 M193 | Hard plate | Not an official NIJ designation. An industry-standard rating tested beyond Level III to include the 5.56 threats that standard III misses. This is what we chose for our hard armor plates. |
| IV We sell this | Armor-piercing rifle | .30-06 M2 AP (armor piercing) at 2,880 ft/s (1 round) | Hard plate | Maximum ballistic protection. Rated for a single hit of armor-piercing .30-06. Plates are typically heavier. Used in military and high-threat tactical environments. |
Level III vs Level III+: Why the Distinction Matters
This is the single most misunderstood area in armor ratings, and it directly affects whether a plate will actually stop the rounds most likely to be encountered in a rifle threat scenario.
III+ Is Not an Official NIJ Level
The NIJ standard defines Levels IIA, II, IIIA, III, and IV. There is no “Level III+” in the official documentation. It is an industry designation, created by manufacturers and adopted widely across the armor industry, to indicate that a plate has been tested beyond the requirements of Level III.
The Problem with Standard Level III
Level III is tested against 7.62x51 NATO M80 ball ammunition. It will stop that round. But here is what many people miss: standard Level III does not guarantee protection against 5.56x45 threats, including the extremely common M855 “green tip” and the high-velocity M193.
The 5.56 round is lighter and faster than 7.62 NATO. At close range, M193 can defeat certain Level III plates, particularly steel plates, because of its velocity profile. M855 with its steel penetrator tip presents a different but equally serious challenge.
What III+ Actually Covers
A Level III+ plate is tested to stop everything Level III stops, plus:
- 5.56x45 M855 (SS109 / green tip): steel penetrator, standard NATO issue
- 5.56x45 M193: 55-grain FMJ at high velocity
- 7.62x51 M80 ball: the baseline Level III threat
The 5.56 NATO round, in both M855 and M193 configurations, is one of the most common rifle calibers in the United States. A hard plate that cannot stop these rounds has a critical gap in real-world protection. That is why every hard armor plate we sell is rated at Level III+, not standard Level III.
“Tested to NIJ Standards” vs “NIJ Certified”
These two phrases sound similar. They are not the same thing, and the distinction matters. We believe in being upfront about this.
NIJ Certified
NIJ Certified means the manufacturer submitted their armor to the NIJ’s Compliance Testing Program (CTP). The armor was tested at an NIJ-approved laboratory, passed all requirements, and is listed on the NIJ’s Compliant Products List (CPL). This is the highest level of third-party validation available for body armor in the United States.
Tested to NIJ Standards
Tested to NIJ Standards means the armor was tested against the same ballistic criteria defined by the NIJ standard (same calibers, same velocities, same pass/fail thresholds) but the manufacturer did not go through the full CTP certification program.
Why Some Manufacturers Choose Testing Over Certification
- Cost: The CTP process involves significant fees for testing, follow-up inspections, and annual compliance, costs that are ultimately passed to the buyer
- Timeline: The certification process can take 12–18 months or longer, which can delay product availability
- Flexibility: Once certified, any change to materials or construction requires re-certification. This limits the ability to iterate and improve
- III+ gap: Since III+ is not an official NIJ level, it cannot be NIJ Certified by definition. There is no NIJ certification pathway for it
Our armor is tested to NIJ standards. We publish our test results and stand behind the performance of every plate and insert we sell. We also run the Test It Yourself Program, where customers can live-fire test their own armor and verify performance firsthand.
We are not NIJ Certified, and we will not claim to be. We believe transparency matters more than marketing language. If certification status is a deciding factor for you, particularly if your agency requires CPL-listed armor, that is a completely valid consideration, and we respect it.
Which Level Do You Need?
Choosing a protection level comes down to threat profile, weight tolerance, and how you plan to carry your armor. Here is a straightforward framework:
- Concerned about handgun threats: Level IIIA soft armor. Stops virtually all handgun rounds including .44 Magnum. Lightweight, flexible, and fits into a backpack or concealed carrier. This is the starting point for most people.
- Concerned about rifle threats: Level III+ hard plates. Stops 7.62 NATO, 5.56 M855 green tip, and M193. This is the standard for anyone who needs rifle-rated protection without the weight penalty of Level IV.
- Concerned about armor-piercing rifle: Level IV hard plates. Maximum protection against AP rounds. Heavier, typically single-hit rated. Standard issue for military applications and high-threat environments.
- Want everyday protection that stays in the bag: Start with a IIIA soft armor insert in your daily carry pack. If the threat level escalates, add a III+ hard plate. Modular protection that scales with the situation.
Weight Tradeoffs
Every step up in protection adds weight. A IIIA soft armor panel typically weighs around 1–1.5 lbs. A III+ hard plate runs 4–7 lbs depending on material (ceramic composite plates are lighter than steel). Level IV plates are the heaviest, often 7–8+ lbs per plate.
The best armor is the armor you actually carry. If a plate is too heavy to bring with you, it provides zero protection. Consider your daily routine, your carry system, and how much weight you can realistically sustain before choosing a level.