When issuing arms to resistance fighters throughout Europe, SOE favoured short-range, rapid fire, cost effective weapons which required little training to use, or maintenance in the field. Initially, they favoured the
British Army issue crude and cheap
Sten sub machine gun, but this weapon perhaps went too far in the directions of cheapness and simplicity. Early marks were notoriously unreliable and prone to accidental discharges, and some were so badly manufactured that they were issued to resistance fighters with "burrs" in the barrel or working parts which might even cause the weapon to explode when fired. One of SOE's research departments, the
Inter Services Research Bureau at
Station IX in
The Frythe, a former hotel outside
Welwyn Garden City, sought a weapon more suited to the organisation's needs in early 1942. They had already produced the prototype
Norm Gun (named after its inventor, Eric Norman) but this was too expensive for large-scale manufacture. A cheaper alternative was produced by F.T. Bridgman. Various other official bodies, and the
Birmingham Small Arms factory also had input. In early 1943, Sir
Charles Hambro, the Director of the SOE, sought permission to have the weapon put into large-scale production. Six pre-production models were tested against comparative weapons, such as the Sten Mk. IV. The Welgun was less reliable in poor operating conditions such as mud or dust, because the first models had been made with too close tolerances. It was however, more accurate and easier to use. Later pre-production models had more generous tolerances and were as reliable as the Sten under conditions of deliberate abuse. Various
Allied commando and Army organisations were enthusiastic about the weapon.
Peter Kemp of SOE was parachuted into Albania with a Welgun, but its first use in battle (ambushing a German
staff car) resulted in it
jamming, which Kemp attributed to adjustments made previously by an
armourer who inadvertently damaged the mechanism. A similar weapon existed in
Croatia invented by J. Barbarić in 1944, in the small village of
Čelebić,
Livno. An example is on display at the Belgrade Army Museum. ==Design and Characteristics==