Modern steel can be used to create bullet proof body armour.[1] A frontal plate costs $65 and weighs 4kg. [1] http://www.ar500armor.com/ar500-armor-trauma-pla

Modern steel can be used to create bullet proof body armour.[1] A frontal plate costs $65 and weighs 4kg. [1] http://www.ar500armor.com/ar500-armor-trauma-plate-advanced-shooters-cut-asc-10x12.html#.VwNBlhG5KrI http://www.ar500armor.com/ar500-armor-trauma-plate-advanced-...