JK Body Armor is manufactured from either 3/16" high pressure steel plate or 3/16" 6061-T6 aluminum plate. Steel is preferred where the JK Body Armor will be installed by itself, without Rocker Knockers™ or other rocker panel protection. Aluminum is recommended where Rocker Knockers, the stock Rubicon rocker rails or other rocker panel protection will also be used. The aluminum pieces are much lighter weight (27 lbs. lighter for the 4-door versions), yet still provide excellent load distribution characteristics when used as a secondary barrier in conjunction with external rocker rails. Both steel and aluminum versions may be painted or powdercoated prior to installation, but only the aluminum ones may be installed raw without any protective coating. They may also be polished or clear-coated at the installer's discretion. Both steel and aluminum parts are CNC-laser cut and precision brake-formed for a precise fit to the unique contours of the JK body. Bolt holes are countersunk, and stainless steel flat head cap screws are supplied for a clean, flush-surface installation. Drilling of the body is required for installation.

Poison Spyder offers a precisely-cut rubber liner to install between the Body Armor and the factory sheetmetal. Although the Body Armor can be mounted without the liner, this additional component adds protection from debris collecting between the Body Armor while protecting your Jeep's factory sheetmetal and paint. The rubber liner is cut to match the lines of the Body Armor perfectly - no cutting or trimming is required. Liners are sold separately and do not automatically come with the Body Armor kits.