With concerns around personal security on the rise globally, more civilians, especially executives, diplomats, and high-net-worth individuals, are investing in bulletproof cars. These vehicles retain their OEM appearance while delivering certified ballistic protection engineered for real-world threats. Among the most commonly requested protection levels in the civilian market are B4 and B6 armoring. But what do these ratings actually mean?
Let’s break down the differences between these two levels of ballistic protection and explore why a buyer might choose one over the other.
What Do B4 and B6 Mean?
B4 and B6 are European ballistic ratings that describe the level of protection an armored vehicle provides. These standards were defined under the Vereinigung der Prüfstellen für angriffshemmende Materialien und Konstruktionen (VPAM) guidelines, originally German but widely accepted globally.
While B4 and B6 are common in civilian contexts, it’s worth noting that military and tactical vehicles often adhere to the NATO STANAG 4569 standard, a more comprehensive framework for ballistic and blast protection used in conflict zones.
While military and law enforcement vehicles may use higher levels of protection, civilian-spec vehicles usually fall within the B4 to B6 range because of one critical factor: enhanced safety with minimal impact on performance and drivability.
B4 Armor: Everyday Urban Security
B4-rated vehicles are designed to protect against handguns and small arms fire. This includes common calibers such as 9 mm, .44 Magnum, and .357 Magnum. The materials used at this level, including ballistic glass and composite panels, can stop bullets from these weapons while remaining light enough to allow for subtle, low-profile upgrades.
Key Features of B4 Armor:
- Protection against: Handguns and lower-caliber threats
- Glass thickness: Around 21–22 mm
- Added weight: Approximately 180 kg
- Best for: Urban environments, low- to medium-risk areas
B4-rated vehicles are well-suited for individuals operating in urban environments with elevated but non-military threat levels but who don’t anticipate assault rifle threats. It is often selected as a starting specification for those exploring discreet civilian-grade armored mobility.
B6 Armor: High-Threat Situations
At the other end of the civilian protection spectrum lies B6 armor, a far more robust option that offers protection against high-powered rifles, including AK-47s (7.62×39 mm), 5.56×45 mm NATO rounds, and 7.62×51 mm NATO ammunition. This level of protection is designed to withstand high-caliber threats common in hostile or high-risk operational settings.
Key Features of B6 Armor:
- Protection against: Assault rifles and higher-caliber threats
- Glass thickness: Typically 36.5–38 mm
- Added weight: Between 550–600 kg
- Best for: Hostile environments, high-risk travel, and dignitary-level protection
Due to its extra weight, B6 armoring is best applied to large vehicles such as SUVs or trucks that have the structural integrity to support it. These vehicles are often modified with upgraded brakes, suspension, and sometimes even stronger engines to compensate for the added mass.
Choosing Between B4 and B6: What Should You Consider?
The decision between B4 and B6 armoring isn’t just about budget, although finances certainly play a role. The decision should be based on a clear understanding of the potential threats you face and the environments you operate in.
Here are a few questions to guide your choice:
- Do you face daily threats from organized crime or potential ambushes involving rifles? If so, B6 is non-negotiable.
- Do you primarily travel through urban areas where the risk is limited to opportunistic crime? Then B4 might be more suitable and efficient.
- Is discreet mobility a priority? B4-rated modifications offer protection while preserving a vehicle’s low-profile appearance.
- Do you have performance expectations or limitations? B6 vehicles can feel significantly heavier and less agile.
If your needs extend into more hostile, combat-related scenarios, STANAG-rated vehicles, like those built by STREIT Group to Levels 2, 3, or 4, may be more appropriate. While B-ratings focus on civilian threats, STANAG 4569 accounts for military-grade dangers, including armor-piercing rounds and explosive blasts.
It’s also worth noting that different manufacturers may slightly vary the materials and methods they use to achieve the B4 or B6 rating. That’s why it’s essential to work with certified, experienced armoring specialists who test their builds according to international ballistic standards.
Luxury Meets Security
While not explicitly stated on our luxury security vehicles page, many of the vehicles we offer from top manufacturers fall within these protection levels. The rise of armored luxury sedans and SUVs that offer discreet yet effective protection is evidence that clients want both comfort and safety without compromise.
For clients who require more robust tactical protection, STREIT also manufactures military-grade platforms, such as the Scorpion, Cougar 4×4, and Hurricane AFV, that are certified up to STANAG 4569 Level 4 depending on configuration.
Contact Us
Whichever route you choose, investing in an armored vehicle is about more than just steel and glass. It’s about assurance, operational control, and the safety of those who matter most.
Whether you’re evaluating a discreet B4 build for daily commutes or a B6 upgrade for executive protection, or even exploring STANAG-rated tactical vehicles, STREIT Group provides certified solutions across the full protection spectrum.
To explore the right level of protection or to speak with our team in confidence, please get in touch on +971 7 244 7395 or email us at sales@armored-cars.com.