Ace Canister-Switch Net Gun New Zealand has been a front runner in Live Capture since the early days of deer out the door of a helicopter It’s designed for capturing animals when needed. Conservation departments, city authorities and airports often start with this net gun. The canister-switch net gun has a detachable net canister that can be replaced with a pre-packed canister straight after firing. As soon as this is done, the unit is ready to fire again. Built in New Zealand using a .308 Harrington & Richardson single shot rifle action by renown gunsmith Nelson Collie these can start at NZD$10,000.00 with two extra cannisters and approximately 200 blank rounds. No Licence Required.