The UBF has a slightly smaller onboard tank, but can be attached to a picatinny rail. Other than that, both perform the same function and have the same capabilities.

*Distance reached is under ideal conditions with standard nozzle installed. California compliant versions of this product contain a nozzle which is designed and intended to limit any ignited stream’s length to under ten (10) feet to comply with CA regulations at the time of manufacture. This nozzle may only be removed if authorization/license is obtained by the state fire marshal, or if the user is outside of California. †Available fuel emission time may vary with fan-type nozzle installed.