US approves $5 billion Foreign Military Sale to Saudi Arabia for 10,000 JDAM-ER bomb kits.

On September 4, 2026, the U.S. State Department approved a $5.0 billion Foreign Military Sale to Saudi Arabia for 10,004 JDAM-ER guidance kits and matching bomb bodies, along with a concurrent $750 million sale for 60 AGT-1500 tank engines. The arms package substantially increases Saudi Arabia's standoff strike capacity by deploying wing-kit technology that extends baseline unpowered bomb reach out to more than 74 kilometers. The acquisition secures operational stock depth across distinct 500-lb and 2,000-lb weapon mass tiers, bolstering long-range precision options for regional deterrence and force interoperability.

The $5.75 billion bilateral Defense Security Cooperation Agency notifications encompass 5,004 KMU-572 JDAM-ER kits with 500-lb BLU-111 bombs, 5,000 KMU-556 kits with 2,000-lb BLU-117 bombs, and 60 M1 Abrams tank powerplants. While split evenly by unit count, 79.99% of total bomb mass falls into the 2,000-lb penetration class, generating a non-interchangeable magazine tailored for hardened targets.

Related topic: Ukraine to receive 1,500 JDAM-ER guided bombs from US in $373 million sale for precision strikes

The U.S. State Department approved a possible $5.0 billion Foreign Military Sale to Saudi Arabia covering 10,004 Joint Direct Attack Munition-Extended Range (JDAM-ER) guidance kits and 10,004 general-purpose bomb bodies. (Picture source: Boeing)

On September 4, 2026, the U.S. State Department approved a possible $5.0 billion Foreign Military Sale (FMS) to Saudi Arabia for 10,004 JDAM-ER guidance kits and 10,004 bomb bodies, split almost exactly between 500-lb and 2,000-lb weapons. Transmittal covers 5,004 KMU-572 kits with 5,004 BLU-111 500-lb bombs and 5,000 KMU-556 kits with 5,000 BLU-117 2,000-lb bombs, plus FMU-139 fuzes, DSU-38 and DSU-40 target detectors, containers, spares, repair support, engineering assistance, and logistics services. On the same day, another FMS notification for Saudi Arabia covered 60 AGT-1500 tank engines and related support equipment, with an estimated value of $750 million. Together, the two proposed sales to Saudi Arabia have a combined estimated value of $5.75 billion.

The numerical 50:50 split hides a much heavier concentration in the 2,000-lb class. The 5,004 BLU-111s represent 50.02% of bomb bodies but only 2.502 million lb of nominal bomb mass, while the 5,000 BLU-117s represent 49.98% of the weapons but 10.0 million lb, or 79.99% of the total mass. A BLU-117 has four times the nominal bomb-body weight of a BLU-111, so the two stocks provide different target effects and are not operationally interchangeable. The lighter BLU-111 belongs to the Mk-82 family used with the GBU-38 and GBU-62 branches of JDAM; a baseline GBU-38 weighs 559 lb, or 253.6 kg, once the guidance assembly is fitted. The package therefore creates two separate inventories of about 5,000 weapons each rather than a homogeneous stock of 10,004 rounds.

The JDAM-ER increases range through aerodynamics rather than propulsion. Baseline JDAM reaches about 24 to 28 km, while the extended-range wing has demonstrated a range of more than 40 nautical miles, or 74 km, adding roughly 46-50 km and increasing maximum reach by about 2.6-3.1 times. The weapon has no engine after release, so actual distance depends on altitude, airspeed, heading, and target geometry. A high-altitude, high-speed release produces the largest Launch Acceptable Region, while low-level employment reduces stand-off because less altitude is available for conversion into glide distance. The >74-km figure is therefore a best-case envelope, not a fixed range for every sortie, and Saudi fighter jets may have to release significantly closer to heavily defended targets under restrictive flight profiles.

The main precision constraint is GPS availability. The JDAM uses inertial navigation corrected by GPS and then flies autonomously after release, with a published accuracy of 5 meters CEP when GPS is available and about 30 meters CEP in inertial-only conditions. That is a sixfold increase in CEP radius and a 36-fold increase in CEP-circle area, from 78.5 m² to 2,827 m², a significant difference against bridge spans, entrances, individual buildings, or command posts. Ukraine showed the practical effect after Russian electronic warfare systems, including the R-330Zh Zhitel, interfered with satellite-navigation reception. Because GPS signals arrive at very low power after traveling roughly 20,200 km from orbit, strong terrestrial interference can still deny reception despite encrypted military signals and anti-jam measures. Saudi Arabia would therefore gain a large precision-strike magazine, but not guaranteed 5-meter accuracy under sustained GPS denial.

Ukraine also provides a useful comparison for scale and employment. The JDAM-ER entered Ukrainian service in spring 2023 on MiG-29 and Su-27 fighters that lacked NATO-standard MIL-STD-1760 interfaces, requiring custom pylons, wiring, and interface electronics, and some aircraft could not update coordinates after takeoff. Four 500-lb JDAM-class weapons were used near Bakhmut on April 26, 2023; later strikes included crossings in Russia's Kursk region on August 30, 2024, and two GBU-62 JDAM-ERs against a road bridge near Kamianske on November 16, 2025. The target set was dominated by fixed infrastructure such as bridges, ammunition storage, headquarters, and transport nodes. Washington's May 5, 2026 package for Ukraine covered 1,532 guidance kits, including 1,200 KMU-572 and 332 KMU-556, so Saudi Arabia's proposed 10,004 kits are 6.53 times larger and are accompanied by an equal number of new bomb bodies.

The ER wing traces directly to Australian glide-bomb work that began in the 1970s. Australia's Weapons Systems Research Laboratory developed low-cost wing and tail-control concepts for Mk-82 bombs, flew four Glide Test Vehicle trials at Woomera in 1988-1989, and tested the follow-on Kerkanya Ballistic Test Vehicle in 1991. Project AIR 5425 began in 2001 to combine the concept with the 500-lb GBU-38 JDAM, followed by Woomera trials in 2006 and 2008 and Project JP3027 from 2009 for production and F/A-18A/B certification. Certification flights ended in 2013, and the JDAM-ER entered Australian service in 2015, with Ferra Engineering involved in wing-kit production. The design choice was straightforward: gain several dozen additional kilometers of range while retaining existing JDAM guidance, bomb bodies, aircraft interfaces and handling infrastructure, but accept shorter reach than a powered missile.

That tradeoff is increasingly clear against the powered GBU-75 JDAM-LR. The baseline JDAM occupies the 24-28 km class, the JDAM-ER exceeds 74 km, and the JDAM-LR is being developed for a range of more than 300 nautical miles, or 556 km, with a TDI-J85 turbine engine. Two April 2026 California tests covered about 200 nautical miles, or 370 km, already five times the 40-nautical-mile JDAM-ER benchmark. In August 2026, Boeing received a $75 million initial production contract for BSU-111/B Payload Delivery Units after investing nearly $100 million in development. At its >556-km objective, JDAM-LR offers more than seven times JDAM-ER's maximum range. Saudi Arabia is therefore buying depth in the mature 70-80 km category, not a weapon capable of keeping the launch aircraft several hundred kilometers from the target.

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Written by Jérôme Brahy

Jérôme Brahy is a defense analyst and documentalist at Army Recognition. He specializes in naval modernization, aviation, drones, armored vehicles, and artillery, with a focus on strategic developments in the United States, China, Ukraine, Russia, South Korea, Türkiye, and Belgium. His analyses go beyond the facts, providing context, identifying key actors, and explaining why defense news matters on a global scale.