|Drawing of a Wu Lei Shen Ji, from 'Wu Bei Zhi (《武備志》)'.|
Although probably unrelated, Wu Lei Shen Ji is very similar to Xun Lei Chong (迅雷銃). Unlike Xun Lei Chong however, this is a more practical weapon.
San Jie Shen Ji (三捷神機, lit. 'Three triumphs divine engine')
|Drawing of a San Jie Shen Ji, from 'Wu Bei Zhi (《武備志》)'.|
Another weapon known as Wan Sheng Fo Lang Ji (萬勝佛狼機) shares many similarities with these weapons.