Edited by Li Munan 
Must-know General Science – Powerful Weapons of Great Countries 

This book mainly includes: The Family of Pistols, The Best Weapon for Self-defense, The Device of Silent Pistols, The Role of Anti-armor Rifles, The Function of Carbines, The Lethality of Dispersion Rifles, The Invention of Modular Gun Family, The Advantages and Disadvantages of Sub-machine Guns, The Use of Special Guns, The Magical Use of Spy Guns, etc.