How a Welrod 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, UK, 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. It was used primarily by the British SOE but was also used by the American OSS and Resistance forces. The Welrod was a “sanitised“ weapon, meaning that it had no markings indicating its manufacturer or country of origin; all it was marked with was a serial number and some inscrutable symbols and letters. The Birmingham Small Arms Company Limited (BSA) confirmed that they manufactured some Welrod pistols, but that they put no markings at all on them, so it is likely that any markings were added by the British military after delivery.