Austria’s Ulbrichts has introduced a new helmet in their Rifle series which can defeat 7.62 x 39 steel core rounds.
This helmet is rated VPAM-6 HVN2009. It is available with night vision shroud and rails as seen here are can be had stripped down. The dial at the rear is to adjust the helmet for a proper fit (48-62). Not only does the helmet stop the projectile but their liner is instrumental in dealing with the kinetic energy of the 7.62 x 39 threat reducing it from 2000 joules to far below 25 joules, preventing lethal brain trauma.
How heavy is it? What about spine injury in neck area?