The Islamic Revolutionary Guard Corps (IRGC), Iran's elite military force, fired a seven-missile salvo at US bases in Kuwait and Bahrain on 5 June, and Bahrain's Patriot Advanced Capability-3 (PAC-3) magazine now sits at 87% depletion1. PAC-3 is the US-made interceptor that defends Gulf bases against Iranian ballistic missiles, and the Bahrain magazine guards the home port of the US Fifth Fleet, the American naval command for the Gulf. At that depletion the base can absorb only a handful more salvoes before the magazine empties.
The Camden, Arkansas plant builds roughly 650 PAC-3 MSE (Missile Segment Enhancement) rounds a year for every customer worldwide, and the line cannot surge: a ramp to 2,000 rounds a year is a 2030 target tied to a $4.761bn April contract. Interceptor stocks are a harder constraint than airframes or ships because the magazine empties one launch at a time while the factory output is fixed. A seven-missile day against an 87%-depleted magazine is an arithmetic problem the supply chain cannot answer at speed.
The queue ordering decides who waits. Bahrain's 50-round resupply sits last, behind Qatar's 300 emergency rounds, placed first under Secretary of State Marco Rubio's 2 May waiver, and Saudi Arabia's 730. Minimum delivery is 18 months. Every waiver that reprioritises the queue pushes another ally's resupply further out, so a US host base is left defending itself on a thinning stock while the factory that refills it cannot reach Bahrain before the missile tempo does. The one Gulf order Washington did sign, Kuwait's $1.98bn Anduril counter-drone sale on 6 June, buys a different country a different capability and arrives too late to change the maths.
