Steel Forced Entry / Ballistic Resistant (FE/BR) Windows deliver DOS certified protection against mob-level forced-entry attacks and rifle-level ballistic threats in a complete system that offers minimal sight lines and design flexibility. Available in a wide variety of performance ratings for both fixed and teller window applications, they can also be engineered to resist significant blast loads with a “no hazard" rating. Ross steel window designs utilize a welded, structural steel frame engineered for high strength and maximum durability.