The Interceptor multi-threat body armor system (IBA) is a bullet-resistant body armor system that was used by the United States Armed Forces during the 2000s, with some limited usage into the mid-2010s. IBA and its design replaced the older standardized fragmentation protective Personnel Armor System for Ground Troops (PASGT) body armor system that was designed in the late 1970s and introduced in the early 1980s.
The IBA system consists of its core component: the outer tactical vest (OTV), which can optionally be worn with a throat protector, groin protector, and biceps (or deltoid) protector. The latter three auxiliary protectors are removable from the main vest, which can be worn alone.