The Intruder in a Box replicates the anatomical variation in material properties of the intended target. Panels of material simulating skin, muscle, bone, and internal organs are layered in the appropriate order to create a realistic platform for ammunition testing. Multiple panels (four shot and nine shot models) are arranged in each box for comparing different loads. Ballistic Boxes will be available for different species of game, as well as the Intruder in a Box, developed to test personal defense ammunition.

Unlike ballistics gelatin, the Intruder in a Box is easy to use. Nothing needs to be mixed, calibrated, or stored at specific temperatures. The Intruder in a Box also takes into account the changes in penetration and wound cavity when a projectile interacts with different anatomically accurate simulants.