The bullpup configuration is a firearm design where the action and magazine are located behind the trigger. This layout allows for a shorter overall weapon length without sacrificing barrel length, making it more compact and easier to maneuver in tight spaces. This design is commonly found in military rifles, such as the Steyr AUG and FN P90. The bullpup configuration can enhance balance and control, as the weight is closer to the shooter's body. However, it may also present challenges in reloading and trigger feel compared to traditional rifle designs.