âInstruments designed to killâ: The suburbs where NSW keeps a million firearms in private arsenals Weâre sorry, this service is currently unavailable. Please try again later. Dismiss Save Normal text size Advertisement Private arsenals in NSW have blown out to more than a million registered guns, sparking fears the actual number is even higher as unregistered weapons cross the border, prompting renewed calls for a national firearms registry. The total number of registered guns in NSW, including those registered to clubs, collectors and dealers, has steadily increased by 11 per cent over four years, from 920,000 in December 2016 to 1,022,740 in December 2020, according to NSW Police data obtained under FOI by Greens MP David Shoebridge.