Cello1988 is correct, I totally forgot the Argentinean landings on April 2, 1982. What I wrote before is still correct, but I completely forgot the fact that on April 1 and 2 the Argentinean Tactical Frogmen (Buzos Tacticos), Amphibious Commandos Company (Compania Comandos Anfibios, the 2nd Marine Infantry Battalion (Batallon de Infanteria de Marina 2) and the A Battey of the Marine Field Artillery (Bateria A, Batallon de Artilleria de Campana de Marina) landed (and even some of them fought or exchanged fire) in the islands. Many of these troops came ashore aboard Argentinean Navy LVTP-7 and LARC amphibious vehicles. There are pictures taken those days showing crewmembers of these vehicles armed with caliber .45 pistols. After a couple of days these troops returned to their bases in continental Argentina. In addition to this, before the shooting war started on May 1st, there were Argentine Naval aircraft temporarily based on the island (e.g. Grumman S-2E Tracker) and many supply missions were flown by the Argentine Navy. There is a chance that some crew members of these aircraft could have been armed with a Sistema Colt pistol. Therefore, there is indeed a chance that the former Argentine Navy Sistema Colt pistol that has been recently purchased by Coneten could have been in the Falklands/Malvinas. And if this is the case, it happened 30 years ago, almost to the day.