The Refill Kit is comprised of a replacement sonic container and a 12g CO2 canister. Simply insert the CO2 canister into the core and then screw the core into the refill bottle.

When detonated in an area, the Duke Sonic Boom releases a non-lethal, but intense sonic punch of 130-decibels (the equivalent of a jet taking off). It has a delayed detonation time of 4 – 5 seconds, allowing sufficient time to throw the device into the targeted area.

The Duke Sonic Boom is completely legal in self-defence situations and requires no licences. It contains no harmful chemicals, primers or thermal reactions (no fire or explosive hazard). Therefore, they do not fall under the international explosives act.

Please note that the Sonic Boom Refill Kit requires you to re-use the core from a Sonic Boom Storm Kit. Therefore, please ensure that you have purchased either a Sonic Boom Kit or a Sonic Boom Tripwire Kit before buying a Sonic Boom Refill Kit.

The Sonic Boom Refill Kit Includes:
1 x Replacement Sonic Container
1 x 12g CO2 Canister
1 x Centre Ring
1 x Kit Safety Clip
1 x Tripwire Safety Clip