Abstract: Building components and building systems are disclosed. An example building component may include a ballistic resistant wall support. The ballistic resistant wall support may include a support structure and a ballistic resistant component connected to the support structure and covering or extending along a portion of the support structure. In some cases, the ballistic resistant component may define one or more pockets for receiving a wall panel. The ballistic resistant wall support may include two such pockets and may be used in a wall system incorporating other ballistic resistant components, such as wall panels, doors, door frames, and/or other components. In such wall systems, the ballistic resistant wall support may include ballistic resistant material that spans a gap between ballistic resistant material of adjacent wall panels received in the pockets of the wall support to provide a continuous ballistic resistant barrier.