Originally Posted by
Alan de Enfield
Although not part of your question, BSA also used re-cycled receivers, wood work, in fact anything, commercial or military to produce their Disperal rifles.
Dispersal Rifles
Up until 1940, BSA made normal high-quality No1 MkIII* on limited military contracts, marked with the usual Crown and BSA&Co, as well as identical rifles just marked "BSA&Co" for commercial sale and export.
With the invasion scare, the Ministry of Supply ordered BSA to make rifles out of whatever parts it could get together. Hence the rifles were made of mixtures of commercial and military parts, mixed walnut and beech wood (or all-beech), later on No4 butts and firing pin/cocking pieces. A second wave of production in 1945 even used recycled and re-dated receivers.
About the same time the emergency rifle production was started, BSA was ordered to disperse its many Birmingham factories away from the bomb-target central area, and also to increase war production by diluting experienced staff with war staff. BSA was a huge engineering group, and this "Dispersal" programme led to 70 seperate factories being set up, moved and/or expanded. Rifle production involved several of these factories (both No1s and No4s), and this type of "all available parts" No1 has become known as a "Dispersal rifle". Technically, even the No4s were Dispersals, as well as motorbikes, bicycles, aircraft parts, machine guns and heavy weaponry...
BSA marked these rifles with just the first "B" of BSA&Co. Presumably this was to dissociate the company from these slightly less-than top quality peacetime rifles!