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Patent PCTNZ2016050042
The technology
behind the sound.
RDX’s patented gas-acoustic system generates an authentic weapon report from propane or MAPP alone — no oxygen, no pyrotechnics. It works alongside or in place of blank fire across small arms, support weapons and vehicle cannon.
2,000+
5.56mm shots from a lighter-sized charge
200,000+
5.56mm shots from one 400g cylinder
1,200 rpm
Peak rate on 5.56/7.62 simulation
No O₂
No oxygen supply to carry or certify
What is our patent?
One fuel. No oxygen. No mixing.
The conventional approach
Traditional gas-based weapon simulators combine propane, acetylene and oxygen. Holding a fuel source next to oxygen introduces risk, and the gases must be carefully mixed for the system to work safely and reliably.
The RDX approach
RDX has spent years perfecting weapon sound generation from a single fuel. Our patented system needs only a small amount of propane or MAPP to simulate thousands of rounds per charge — with no oxygen and no gas mixing.
Rate of fire and recoil
Simulated 5.56mm and 7.62mm fire reaches rates of up to 1,200 rounds per minute, with recoil to match — so trainees feel, as well as hear, the weapon.

Shot capacity & safety
Thousands of rounds from a lighter-sized charge.
A single charge — about the same amount of gas as a disposable lighter — produces over 2,000 shots in the 5.56mm range. Charges are transferred in seconds from a standard 400g cylinder using an off-the-shelf adapter.
- Small gas volume per device — significantly reduces the risk of a large fire or explosion.
- No pyrotechnics — no firearms or pyrotechnic licensing to operate.
- No waste — no brass, links or residue left on the range.
Who it’s for
One core technology. Many form factors.
Defence
From dismounted infantry to armoured vehicle crews. In service with the New Zealand Army and the Australian Defence Force.
Law enforcement
Realistic, sensory-rich scenarios that build decision-making under stress — without a live-fire facility.
Training & film
Security training providers and productions that need authentic weapon sound without blanks on set.

25–30mm SIMFIRE Auto Cannon Kit

XM4 Inert Training System

