The "Tactical Impact Resistant Arm Shield" tank section appearance design uses the principle of equivalent armor to increase the equivalent thickness without increasing the physical thickness. The standard model for improving defense capability is a left-hand shield design, and the back is equipped with a handle and a fixed webbing (the handheld method can be customized). It is suitable for Z scenes with complex terrain, and can move more flexibly in narrow stairs or passages, and can also better cooperate with W devices such as Q support.