Mounted Archery [General]
Prerequisites: Ride 1 rank, Mounted Combat.
Benefit: The penalty you take when using a ranged weapon while mounted is halved: -2 instead of -4 if your mount is taking a double move, and -4 instead of -8 if your mount is running.
Special: A fighter may select Mounted Archery as one of his fighter bonus feats.
Source: SRD 3.5 Feats