- "Highly modular Australian bullpup assault rifle, chambered in 5.56mm NATO."
— In-game description
The F90 is an assault rifle featured in Tom Clancy's Rainbow Six Siege in the Operation Burnt Horizon expansion pack. It is available for use by the SASR Operator Gridlock.
F90 is an Australian descendent of the AUG A1 design intended for export, licensed by Steyr to Lithgow Arms.
- Compared to AUG A1, the F90 has a larger hand guard with finger slots to the front. In real life, this feature is designed to have it double as a Vertical Grip, which is not modelled in the game.