The Unguided Bomb (Small) (UGBS) is a bomb-type special weapon. It deals less damage and has a slightly smaller blast radius than the Unguided Bomb. As with the standard UGB, the UGBS has no guidance and requires the use of a pipper to manually drop it over the intended targets. The UGBS is exclusive to Ace Combat 04: Shattered Skies and Ace Combat Infinity (and only available on Piston Fighters in Infinity). They are modeled after the Mk.82 for American aircraft and the FAB-250 for the MiG-29A Fulcrum.