Various parts from the Starlight Scope Mount for FN C1 A1 Rifle - NSN5855-21-871-4140 Possibly the AN/PVS-2 Starlight scope variation. The FN was the first semi-automatic weapon to be adopted by the Canadian Army. It was also the first NATO country to adopt this robust Belgian weapon which later saw service in militaries around the world. Heavy and firing a large (7.62mm) cartridge, the FN was much liked and respected by many soldiers who used it, and its replacement in the 1980s by the C7 (with its much smaller round) was a point of contention among many "old soldiers" who preferred the heavy FN. The FN was produced by Fabrique Nationale of Belgium, and the Canadian FN was produced under license by Canadian Arsenals Limited (CAL) (Long Branch, Ontario). An "Arctic trigger" on Canadian weapons allowed the trigger guard to be removed so the weapon could be fired with heavy mitts on.