As mentioned in the main Bren introduction, the actual production numbers for the FLS and the ratio of issue to actual guns are unknown. The concept of use could not be clear enough. When using the gun in its sustained fire support role, via the tripod, the FLS enabled the Bren to be sighted to a specific direction, while allowing for the gun to be re-deployed and returned to the tripod without losing the fixed target position. However, anyone reading this will note that this could be equally achieved by purely visual means.

Our example of the FLS is a relic of the actual battle. It has long been accepted that the FLS was withdrawn prior to the BEF being sent out to France, so the very existence of this item disproves a long-held narrative. It was discovered in a domestic shed in the village of Reninge, Belgium, along with a number of other items from 1940.

When discovered, it was missing the lensatic sight from the top, which we have managed to replace with a similar one of the period. It is not known exactly which unit abandoned the item, although the local cemeteries of Zuidschote and Noordschote contain the graves of men from the Royal Berkshire Regiment (Princess Charlotte of Wales's) killed in action during the battle of 1940.