28 September 2026
Two questions decide the choice of bullet-resistant glass: which threat do you want protection against, and where will the glass be fitted? The answers determine the class, the thickness and the cost.
EN 1063 glass classes
| Class | Threat | Approx. thickness |
|---|---|---|
| BR1-BR3 | Small-calibre handgun rounds | 10-18 mm |
| BR4 | .44 Magnum handgun | 20-22 mm |
| BR5 | 5.56 mm rifle | 30-34 mm |
| BR6 | 7.62x51 mm rifle (soft core) | 38-42 mm |
| BR7 | 7.62x51 mm armor-piercing | 55-65 mm |
Thickness and weight rise with the class; a square metre of BR6 glass exceeds 90 kg. BR6 is the most common choice for vehicles; BR7 is chosen only where hard-core rounds are a realistic threat.
What matters when replacing vehicle glass?
- Frame overlap: The glass edge must overlap the body armor by at least 20 mm, otherwise the window perimeter becomes a weak point.
- Opening windows: Front door windows can be made to open partially on request; the motor and rail system is reinforced.
- Vision and optical quality: Good lamination causes no colour shift or distortion; the difference is obvious at night.
- Heating and sensors: Heating elements, rain sensors and camera zones are planned individually.
What determines the price of bullet-resistant glass?
Price depends on the class, the glass area, curved shapes and the vehicle model. Replacing all windows of an SUV at BR6 accounts for roughly a third of the total armoring cost. For a firm quote the make, model and target class are enough; reach us through the contact page.
