Massad Ayoob has been handgun editor of GUNS magazine and law enforcement editor of AMERICAN HANDGUNNER since the 1970s, and has published thousands of articles in gun magazines, martial arts publications, and law enforcement journals. He is the author of more than a dozen books on firearms, self-defense, and related topics, including In the Gravest Extreme, widely considered to be the authoritative text on the topic of the use of lethal force.
The winner of the Outstanding American Handgunner of the Year Award in 1998, Mas has won several state and regional handgun shooting championships. Ayoob is one of approximately ten Five Gun Masters among the 10,000-member International Defensive Pistol Association, and was the first to earn that title. He served 19 years as chair of the Firearms Committee of the American Society of Law Enforcement Trainers, and several years as a member of the Advisory Board of the International Law Enforcement Educators and Trainers Association. In addition to teaching for those groups, he has also taught for the International Association of Law Enforcement Firearms Instructors and the International Homicide Investigators seminars.
Mas has received judicial recognition as an expert witness for the courts in weapons and shooting cases since 1979, and has been a fully sworn and empowered, part time police officer for over three decades. Ayoob founded the Lethal Force Institute in 1981 and served as its director until 2009, and now trains through Massad Ayoob Group. He has appeared on CLE-TV delivering continuing legal education for attorneys, through the American Law Institute and American Bar Association, and has been retained to train attorneys to handle deadly force cases through the Armed Citizens Legal Defense Network. Ayoob served for two years as co-vice chair of the Forensic Evidence Committee of the National Association of Criminal Defense Lawyers. He also appears in each episode of Personal Defense TV (Sportsman's Channel).