collectors. The law pertaining to the acquisition of a high-capacity magazine by itself did not change. Number of guns in circulation Switzerland thus has a relatively high gun ownership rate. There are no official statistics, and estimates vary considerably. The 2017 report from Small Arms Survey has estimated that the number of civilian-held firearms in Switzerland is of 2,332,000, which given a population of 8.4 million corresponds to a gun ownership of around 27.6 guns per 100 residents. Other estimates place the number of privately held firearms upwards to an average of 3,400,000, giving the nation an estimate of 41.2 guns per 100 people in 2017. The International Crime Victims Survey conducted in 2004-05 reported that approximately 28% of all households in Switzerland owned guns, giving Switzerland the second-highest percentage of firearm ownership in Europe. When Switzerland joined the Schengen Information System in 2008, it was forced to introduce a central registry for firearms. Only firearms which changed hands since 2008 are registered. The number of registered firearms in this database was reported as 876,000 as of August 2017 which given a population of 8.4 million corresponds to around 10.3 registered guns per 100 residents. Regulation Switzerland's Weapons Law (WG, LArm) and Weapons Act (WV, OArm) has been revised to accede to the Schengen Treaty effective 12 December 2008. The Act on Personal Military Equipment (VPAA, OEPM) governs the handling of military equipment, and in particular the handling of personal weapons by military personnel. The law is applied to the following weapons: Firearms, such as pistols, revolvers, rifles, pump guns (), lever-action rifles, self-loading guns (shotguns and rifles). Air and guns with a muzzle energy of at least 7.5 joules, or if there is risk of confusion with a firearm. Imitation, blank firing guns () and air-soft guns when there is risk of confusion with a firearm. Butterfly knives, throwing knives, switchblade or automatic knives with total length greater than 12 cm and blade length greater than 5 cm. Daggers with a symmetrical blade less than 30 cm. Devices that are intended to hurt people such as batons (), throwing star, brass knuckles, slings with armrest. Electric shock devices and spray products with irritants in Annex 2 weapons ordinance (WV/OArm), except for pepper spray. Generally prohibited weapons are: Automatic firearms and military launching devices for ammunition, for projectiles or for missiles that have an explosive effect, and their essential or