After World War Two, Luxembourg was one of the nations which opted to purchase new FN-49 rifles. It bought a total of 6,203 of them for the military – an initial purchase of 4,000 semiauto SAFN rifles and a followup purchase of 2,000 AFN select-fire rifles and 203 semiauto rifles fitted with Belgian OIP telescopic sights. The scope mounts were commercial Echo mounts, designed and manufactured by an American engineer named Herkner, in Boise Idaho.
When Luxembourg replaced its FN49 rifles with the newer FN FAL type, the snipers were either scrapped or sold as surplus, but the scopes were kept and reused on FALs. However, the Luxembourg rifles used the same pattern OIP scopes as the Belgian military, and these are often found mounted to surviving Luxembourg rifles.