How a Welrod MKII works

The Welrod is a British bolt action, magazine fed, suppressed pistol devised during World War II at the Inter-Services Research Bureau (later Station IX), based near Welwyn Garden City, United Kingdom, for use by irregular forces and resistance groups. Approximately 2,800 were made. The Welrod is an extremely quiet gun, being only 73db when fired, about as loud as a present-day passenger car.