Patent ID: 7891283

Claim:
A ballistic resistant unit, comprising: an armored front panel having opposing side edges, an upper edge formed between the opposing side edges, and a body formed below the upper edge and extending between the opposing side edges; a ballistic resistant panel comprising a window, the ballistic resistant panel having an upper edge and a lower edge opposite the upper edge of the ballistic resistant panel, the ballistic resistant panel slidably mounted to said armored front panel for selective movement between an extended position wherein the upper edge of the ballistic resistant panel extends beyond the upper edge of the armored front panel and the lower edge of the ballistic resistant panel is positioned below the upper edge of the armored front panel and overlaps with the body of the armored front panel, and a retracted position wherein the upper edge of the ballistic resistant panel is proximate to the upper edge of the armored front panel and the lower edge of the ballistic resistant panel is positioned below the upper edge of the armored front panel and overlaps with the body of the armored front panel; and first and second side panels movably coupled to opposing sides of said armored front panel, each of said first and second side panels movable between extended and retracted positions.