The U.S. Navy expanded its Mk 38 Mod 4 30mm gun inventory with a $197 million three-year contract to MS International, committing $61.3 million in the first year for 22 gun mounts and 23 electro-optical sights. The move addresses operational demand for lower-cost close-in defense against drones and small surface threats highlighted by Red Sea operations.
What's happening
- First-year order commits $61.3 million for 22 Mk 88 Mod 4 stabilized gun mounts and 23 Mk 48 Mod 2 electro-optical sights, with deliveries extending to January 2031.
- The three-year ceiling value is $197 million, with quantities for years two and three to be agreed annually.
- Cumulative Mk 38 Mod 4 production orders across all procurement tranches total 55 mounts, though not all are equipped on single ships.
- The 30mm Mk 44 Bushmaster II gun carries 400 rounds through dual feeds, supporting airburst ammunition for unmanned aerial vehicle engagement.
Why it matters
- Airburst 30mm rounds provide a lower-cost alternative to surface-to-air missiles for destroying drones, preserving limited missile inventories for cruise and ballistic missile threats.
- Aegis Combat System integration enables the weapon to function within the ship's unified sensor and engagement architecture, extending the close-in defense layer.
- Red Sea operations demonstrated sustained drone and missile attacks on Navy destroyers, creating urgent operational demand for effective short-range counter-unmanned capabilities.
- The Mk 38 Mod 4 represents the first caliber increase in the Mk 38 family in over 30 years, upgrading from 25mm to 30mm with improved destructive effect against small maneuvering targets.
Going deeper
- USS Mustin, an Arleigh Burke-class guided-missile destroyer, received the first two Mk 38 Mod 4 mounts and remains the only destroyer publicly identified as carrying the weapon.
- Mk 48 Mod 2 sight provides stabilized television and thermal imagery with laser ranging, enabling tracking of small, fast-moving aerial and surface targets.
- July 2022 testing at Potomac River Test Range demonstrated detection, tracking and live-fire engagement through an integrated fire-control chain, though no combat kills against hostile drones have been publicly documented.
- Installation schedules depend on ship configuration, maintenance periods and integration priorities, meaning cumulative 55-mount total will roll out over multiple fiscal years.
Financial impact
- Year one obligated funds of $61.3 million will be recognized as revenue by MS International in fiscal 2026, with $135.7 million in potential additional revenue tied to years two and three annual commitments.
- Contract value includes Mk 88 Mod 4 mounts, Mk 48 Mod 2 sights, associated equipment and spares, with delivery through January 2031 spreading revenue recognition across multiple fiscal periods.
- Annual quantity decisions for years two and three create contingent revenue, with no guaranteed minimum beyond the 22 mounts committed in year one.
The intrigue
- Only one destroyer has been publicly identified as receiving the Mk 38 Mod 4, yet cumulative orders total 55 mounts, raising questions about which ship classes and foreign navies may receive the weapon.
- Year two and year three quantities remain unspecified despite a three-year contract ceiling, creating production planning uncertainty and potential for either expansion or contraction beyond initial 22-mount commitment.
The fine print
- The $197 million represents ceiling value; actual expenditure depends on annual quantity commitments negotiated for years two and three.
- The reported 55-mount cumulative total reflects all production orders across successive procurement actions and should not be equated to 55 equipped ships, as some destroyers may carry multiple mounts.
Source: armyrecognition.com · Oct 7, 2026 · Drafted with Claude, reviewed by Industrial Base Alpha.
