This is the book that tells you everything you need to know to conceal a handgun, sub-machine gun, knife, or extra magazine for off duty! In-depth analysis shows concealment methods, techniques, and secrets of undercover detectives and off duty cops. SWAT operators, narcotics officers, and industry professionals model over 500 holsters and concealment methods for you, with contact information on where to buy! Also covered are how leather and synthetic holsters are made, and insider industry terms. There has never been a book like this before! Authored by a renown gunsmith, holster manufacturer and gunwriter with over two decades of real-world police experience!