I hear more and more about AR-500 steel being used as ballistic S.A.P.I plates. AR-500 is not a company as much as is a product I.D . This is a steel with a 500 Brinell hardness used for industrial projects or range targets. This plate will not encapsulate the incoming round , only redirect it into your neck or arms. Plus or minus 5 degrees and maybe someone standing next to you.
These plates are heavy , cheap , and have no expiration date so I understand there allure . But there is a reason no Military or Law enforcement agency in the world will deploy them . Don`t fall for this prepper scam . Pony up and buy real gear .