The HDP4+JS41 Hydraulic Door Pusher and Jamb Spreader is a versatile, heavy-duty breaching tool designed for rapid adaptability in the field. Built from custom heat-treated steel to withstand high-stress operations, this two-in-one tool functions both as a rabbit tool for door breaching and a quiet jamb spreader for stealthy entry. It integrates seamlessly with the GEN4 Hydraulic Kit, offering operators a flexible and efficient solution for both forced and low-damage entries.

The HDP4 serves as a powerful door pusher with a four-inch stroke, making it ideal for breaching inward and outward swing doors. Heavy-duty blades and a reinforced steel strike plate allow operators to use a deadblow hammer for insertion into tight gaps, ensuring effectiveness even in high-security, zero gap scenarios. For barricaded or fortified doors, the HDP4 delivers reliable power to gain immediate access.

When stealth is essential, the tool converts into the JS41 Jamb Spreader by simply threading the JS41 Spreader Bar onto the back of the hydraulic ram. This mode enables low-damage entry by spreading the door frame without cracking or breaking components, ensuring the lockset disengages from the frame quietly. It is particularly effective for wellness checks or covert operations, where minimizing noise and damage is critical. The quick conversion between pusher and spreader modes allows operators to handle multiple types of entry points seamlessly during a mission.

Enhanced Mobility and Safety

The swivel hydraulic connection, available as an option, provides a full range of movement to ensure safe placement and operation without forcing the operator into the fatal funnel. The HDP4+JS41 is fully ambidextrous, allowing left- and right-handed users to operate it comfortably. The quick-connect hydraulic fittings ensure easy setup and disassembly, minimizing downtime in the field.

Designed to be hand-safe across the entire body, the tool ensures easy manipulation, even in high-stress situations. Its ergonomic construction improves usability, ensuring operators can maintain control under difficult conditions.

Proven Reliability and Adaptability

The HDP4+JS41 has undergone MIL-STD 810 testing and is trusted by leading military and law enforcement units, including the NYPD, Belgian Defense Forces, and the USAF. Whether breaching fortified doors or executing quiet entries, this two-in-one tool offers unmatched flexibility and performance in a compact, easy-to-deploy package.

Key Features

High-Strength, Heat-Treated Steel Construction
- Engineered for durability, ensuring reliable operation in high-stress environments.
- Heavy-duty blades designed to withstand repeated breaching and spreading operations.
2-in-1 Tool: Door Pusher and Jamb Spreader
- Door Pusher (Rabbit Tool): Delivers 4 inches of stroke for inward and outward swing doors.
- JS41 Jamb Spreader Bar: Converts the tool into a jamb spreader via a simple direct-thread connection for quiet, low-damage entry.
Heavy-Duty Door Pusher Function
- Includes a reinforced steel strike plate for insertion using a deadblow hammer, enabling access through tight gaps.
- Provides quick breaching capability for barricaded or fortified doors.
JS41 Jamb Spreader for Stealth Operations
- Ideal for wellness checks or covert missions requiring minimal noise and no structural damage.
- Spreads door frames quietly by disengaging the lockset without breaking components.
- Can be quickly converted back to a door pusher in the field for dynamic missions.
Internal Spring Retraction Mechanism
- Quickly resets the tool between operations, enhancing efficiency for back-to-back breaches.
- Compact design improves portability and maneuverability in confined spaces.
Quick-Connect Hydraulic Fittings
- Ensures seamless integration with GEN3, GEN4, and manual hydraulic pumps.
- Allows fast setup and disassembly, minimizing downtime during operations.
MOLLE-Compatible Storage and Hands-Free Operation
- Equipped with tool holder studs for secure attachment to MOLLE-based carry systems.
- Enables hands-free storage on ballistic vests, keeping the tool accessible during missions.
Ergonomic and Safe Design
- Hand-safe across all components except the blades, ensuring easy handling in high-pressure scenarios.
- Lossless hydraulic fittings allow the tool to rotate on the hose, enhancing usability without a swivel connection.
Tested to MIL-STD 810G Standards
- Engineered to meet rigorous durability requirements for military and law enforcement operations.
- Trusted by the NYPD, Belgian Defense Forces, and USAF for critical breaching tasks.

Specifications

HDP4 (Part #1 of 2-in-1 Ratspreader)

WEIGHT: 7 LBS | 3.2 KG
DIMENSIONS: 10.4 x 4.9 x 3.7 IN | 264 x 114 x 98 MM
STROKE: 4 IN | 102 MM
PUSHING POWER: 10,000 LBS | 4535KG
WORKING PRESSURE: 690 BAR | 10,000 PSI

JS41 (Part #2 of 2-in-1 Ratspreader)

WEIGHT: 5.7 LBS | 2.6 KG
LENGTH MIN: 660 MM | 26 IN
LENGTH MAX: 1041 MM | 41 IN
PUSHING POWER: 10,000 LBS | 4545 KG
WORKING PRESSURE: 690 BAR | 10,000 PSI

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