The mechanism of a gun is to gather all the force of the body into one point. The human body's power comes from its legs. With the contraction of muscles, Darren's military boots turned slightly, gripping the ground like nails.,Power travels from the feet up through the pelvis, the pelvis and spine must stay stable, the whole body twists as one force, then the shoulders, arms...,Everyone turned to the sound and saw Jia Ji walking out of the crowd with his hands akimbo.。