Originally Posted by ThunderCactus
Somebody had an issue helmet with a titanium plate in it that could allegedly stop a 7.62x39....I wanna say it was british
The swiss in I believe it was the early 80s developed the tig titanium helmet. It was adopted by many counterterrorism teams including units in the KGB...the Russians then reverse engineered them and created the altyn. 9mm literally bounces off it.