ArmorCo Advanced Armor

AR-500 Steel Wall Plates are easy to install providing protection to vulnerable areas, such as reception desks, doors, and walls against critical situations where human lives are at risk.
https://www.armorco.com/online-store/Bullet-Proof-Tiles-NIJ-III-Protection-c24608567

Each 16″ wall tile provides 1.78 sq/ft of protection and can be mounted to any flat surface. They are easy to install and are supplied with mounting holes to accommodate 16″ studs. Built to withstand up to NIJ Level III attacks, these plates offer the highest level of personal ballistic protection currently available. Level NIJ IV protection is also available for quotes.

AR500 steel is a grade of abrasion-resistant steel plate that offers outstanding wear and impact resistance. With a hardness range between 460 – 550 BHN, AR500 is known for its toughness and excellent wear resistance, along with exceptional fatigue and corrosion resistance. Since it’s an extremely durable and long-lasting material, AR500 can help lower material costs.