How thick is ballistic glass?
Armormax ballistic glass ranges from 20mm to 70mm in thickness. With the most common being 42mm B6+ (7.62 x 51) protection to be use in West Africa, the Middle East and dangerous regions in South America. We take out the original glass and design each glass piece to fit the new armored car meaning that our Range Rover glass would not work on a BMW.
You can see a video here of showing what happens when a normal glass from a regular vehicle is shot versus Armormax glass.
There is a great blog post that goes into a lot of detail: Bulletproof Glass