David's Sling: The Rafael-Raytheon Mid-Tier Interceptor That Closes the Gap Between Iron Dome and Arrow

David's Sling is the mid-tier layer in Israel's integrated air defense architecture. It sits operationally between the short-range Iron Dome at the low end and the exo-atmospheric Arrow family at the high end. Built jointly by Rafael Advanced Defense Systems and Raytheon under a US-Israel co-development agreement, David's Sling has been operational with the Israeli Air Force since 2017 and engages short-to-medium-range ballistic missiles, large-caliber rockets, and cruise missiles in the 40-to-300-kilometer engagement envelope. It is the component of the Israeli air defense stack that engages the threats Iron Dome cannot reach and Arrow does not need to.

Where David's Sling sits in the architecture

Israel's layered air defense operates across four interceptor categories. Iron Dome engages short-range rockets and artillery up to roughly 70 kilometers. David's Sling engages medium-range threats from 40 to 300 kilometers. Arrow 2 engages ballistic missiles in the upper atmosphere. Arrow 3 engages ballistic threats exo-atmospherically, above the atmosphere. The new Iron Beam laser layer engages rockets and drones below Iron Dome's effective interception cost-per-engagement, adding a fifth distinct technology tier.

The David's Sling envelope is the band that captures the threats Iron Dome cannot reach — Scud-class ballistic missiles, large rocket systems including the Iranian Fateh and Zelzal families, the Hezbollah arsenal at the upper end of its rocket inventory, and cruise missiles across the standoff-precision category. The system became operational just as the Iranian-proxy missile threat in Lebanon and Syria reached the inventory levels that justify the engagement category.

The Stunner interceptor and the dual-pulse motor

The Stunner interceptor missile is the David's Sling munition. It is built as a hit-to-kill weapon — meaning it destroys the incoming threat by physical impact rather than by detonating a warhead at close range. The dual-pulse rocket motor allows the interceptor to maneuver aggressively in the terminal phase, which is necessary to defeat the maneuvering reentry vehicles increasingly common on modern medium-range ballistic missiles. The radar-and-electro-optical seeker provides terminal guidance across both ballistic and atmospheric targets.

The Stunner economics are favorable relative to comparison categories. Raytheon SM-3 Block IIA interceptors cost roughly $30 million per round. Stunner is reported in the $1-2 million range per round. The cost differential matters when the threat is sustained — a Lebanese rocket-and-missile inventory of tens of thousands of weapons cannot be defeated economically with $30 million interceptors. The David's Sling cost structure is one reason it has expanded across the IAF mission set since 2017.

The combat record

David's Sling was first reported in combat use in 2018, engaging Syrian-launched rockets that crossed into Israeli airspace. Operational engagements have continued through the post-October 7 conflict. The IDF has reported David's Sling engagements against multiple threat categories from Lebanese Hezbollah and Iranian-launched ballistic missiles during the April 2024 and October 2024 Iranian attacks. The combat record validates the operational envelope the system was designed for.

The US co-development structure

David's Sling is co-funded and co-developed under the US-Israel missile defense cooperation framework. Raytheon participates in the development and is the US prime for the program. US Missile Defense Agency funding flows through the program. US-Israel joint development of the Stunner technology has, in turn, fed into the broader Raytheon missile-defense interceptor portfolio. The architecture is closer to a true joint development program than a simple aid-funded weapon.

The takeaway

David's Sling is the mid-tier closer of the Israeli air defense stack. Iron Dome covers the cheap short-range threats. Arrow covers the exo-atmospheric ballistic threats. David's Sling closes the gap between them. The Stunner interceptor's combination of hit-to-kill engagement, maneuverable terminal phase, and favorable cost structure has been validated across multiple combat engagements since 2017. The US-Israel co-development structure is one of the most operationally productive joint programs in the broader US-Israel defense relationship.

This profile is part of Olam's Defense pillar. See also: Iron Dome architecture, Israel Aerospace Industries.