The Exothermic Pulsefire UBF (Under-Barrel Flamethrower) is the first commercially available under-barrel flamethrower – the Pulsefire LRT system in a compact, rail-mountable form factor. Run it fully handheld, or clamp it to any Picatinny rail for an over-the-top setup. No external battery or fuel source required.
Key Features
- Range: 25+ feet with the standard nozzle
- Fuel capacity: ~22 seconds per fill; expandable to 4+ minutes with the Pulsefire Backpack Kit via included male-male adapter
- Mounting: MIL-STD-1913 Picatinny profile with quick-detach lever clamp; built-in kickstand for safe filling
- Ignition: Continuous high-frequency electric arc
- Weight: ~6 lbs (primarily aluminum)
- Compatible fuels: Gasoline or gas/diesel mix (up to 50% diesel)
Tested on hard-recoiling hosts (including .308 SCAR and .50 BMG) without failure. Not legal in California or Maryland.
