US Army Accelerates Search for “SLED” Air Defense: Protecting Light Infantry from the Skies

The U.S. Army has issued a critical Request for Information (RFI) for its M-SHORAD Increment 4 program, seeking a modular, “skid-mounted” air defense system designed to accompany light infantry units into the most contested battlefields.

With a fast-approaching deadline of April 6, 2026, the Army is scouting for a versatile solution that can be rapidly deployed via C-130, air-dropped, or sling-loaded, filling a dangerous gap in short-range air defense (SHORAD) for airborne and light maneuver forces.

Beyond the Stryker: The Rise of the SLED

While earlier phases of the M-SHORAD program focused on integrating weaponry onto the Stryker armored vehicle, Increment 4 marks a paradigm shift toward portability and modularity. The Army’s vision centers on a self-loading equipment ramp or pallet (SLED) capable of hosting both kinetic and non-kinetic counter-unmanned aircraft system (C-UAS) technologies.

According to the RFI, the system must be platform-agnostic, capable of being mounted on:

• Infantry Squad Vehicles (ISV)

• Robotic Combat Vehicles (RCV)

• Unmanned ground platforms

“The SLED must maintain its independent functionality,” the RFI states. “Once the system is removed, the transport vehicles must return to their full original utility.”

Tactical Requirements: SWaP and MOSA

The Army acknowledges the immense challenge of packing high-tier defense capabilities into a compact frame. To overcome Size, Weight, and Power (SWaP) constraints, the program mandates a Modular Open Systems Approach (MOSA). This ensures that the hardware and software can be upgraded as new threats—such as Group 1-3 UAS swarms—evolve.

Lethality Package: What’s on the Pallet?

The proposed system is expected to neutralize a variety of low-altitude threats, including fixed-wing aircraft, helicopters, and drones. Potential weaponry includes:

• Missiles: Stinger or Next-Generation Short Range Interceptor (NGSRI).

• Cannons/Guns: XM914 30mm cannon, .50 caliber, and 7.62mm machine guns.

• Precision Munitions: Advanced Precision Kill Weapon System (APKWS).

• Non-Kinetic: Integrated electronic warfare (EW) suites and advanced active/passive sensors.

Timeline: Deployment by 2027

The U.S. Army is looking for “high TRL” (Technology Readiness Level) solutions to expedite development. The goal is to field an initial capability between 2027 and 2029. By leveraging existing programs of record, the Army intends to skip lengthy research cycles and move straight into integration and testing.

Why it Matters for Global Defense

For light infantry and airborne troops, the lack of mobile air defense has been a “soft underbelly” in recent conflicts where cheap, loitering munitions have dominated the airspace. The M-SHORAD Increment 4 represents a vital shield for “Joint Forcible Entry” (JFE) operations, ensuring that paratroopers and light scouts are not left defenseless against aerial threats during the first critical hours of an assault.

As the program progresses, industry giants and agile defense startups alike are expected to showcase modular “plug-and-play” weapon stations that could redefine how ground forces interact with the sky.