Home / Support weapons / XM203 B.O.S.S.
XM203 B.O.S.S. Gen II
Grenade launcher sound simulator using RDX’s patented gas-acoustic technology. 140–150 dB of report, engineered for reliability, realism and field performance.
NZ$1,400
Production greenlit — deposits open for the current run
Retail price in New Zealand dollars · NZ$700 deposit secures your unit · balance due before dispatch · built to order · worldwide shipping · SKU 22327
Current production run
Last updated 23 September 2026
Complete
Deposits received
Complete
Parts manufacturing
In progress
Assembly
Pending
Quality control
Pending
Shipping
Every customer receives an email update at each stage.
How ordering works
01 Reserve
Place your order with a 50% deposit to lock in a unit from the current run.
02 Manufacture
Your unit is built to order in New Zealand.
03 Assemble & test
Assembled and tested under RDX oversight.
04 Dispatch
Balance requested before dispatch. Shipped worldwide.
Specifications
B.O.S.S. Gen II technical data
Hearing protection required. Output is approximately 140–150 dB — keep unprotected personnel outside a 10 m radius.
| Sound output | ≈140–150 dB |
| Rate of fire | Default 800 rpm · adjustable in 10 rpm steps on the unit |
| Power | 7–15 VDC · 2.5 A per shot · <20 mA standby |
| Gas | MAPP recommended, propane accepted · 5–10 s fill gives 2,000+ rounds |
| Cold weather | B.O.S.S. Seal options for below 0 °C |
| Ingress protection | IP64 |
| Interface | B.O.S.S. cable (+/– signal) |
| Controls | USB-C on/off key · up/down rate keys · gas adjustment dial · status LED and buzzer |
| Safety | Will not fire with firing sleeve open · over-temperature and cold warnings |
| Maintenance | Patented rear sleeve seal, user-replaceable · single moving part |
12
Countries with B.O.S.S. units in the field
Australia · Canada · Denmark · France · Germany · Ireland · Netherlands · New Zealand · Norway · South Korea · United Kingdom · United States
Existing owners