1. Product Overview
The Bandai Hobby Action Base 4 is a versatile display stand designed to support 1/100 scale model kits, as well as other scales depending on weight and connection points. This kit features a modular design, consisting of three hexagonal base plates that can be used individually or combined to create a larger display area. It includes a long base arm and multiple sub-arms, allowing for a wide range of standing and dynamic action poses. The unique design incorporates small support joints that securely lock the arms, ensuring stability for your displayed model kits.
The Action Base 4 provides flexibility for displaying single models or creating complex dioramas with multiple figures and accessories.
2. Safety Information
WARNING: This product contains small parts which may pose a choking hazard. Keep out of reach of small children. Recommended for ages 13 years and up.
3. Package Contents
Carefully unpack the contents and ensure all parts are present. The Action Base 4 kit typically includes:
- Three (3) Hexagonal Base Plates
- One (1) Long Main Support Arm
- Multiple Sub-Arms and Extension Pieces
- Various Connection Adapters for different model types
- Locking Joints and Pins

Figure 3.1: All individual components included in the Action Base 4 kit, laid out for assembly. It includes three hexagonal base plates, various support arms, connectors, and adapters.
4. Setup and Assembly Instructions
Follow these steps to assemble your Action Base 4:
- Base Assembly: Connect the hexagonal base plates by aligning the interlocking tabs and pressing them firmly together. You can use one, two, or all three plates depending on your display needs.
- Main Arm Attachment: Insert the base of the main support arm into one of the designated holes on a hexagonal base plate. Ensure it clicks securely into place.
- Arm Extension and Articulation: Attach extension pieces and sub-arms to the main arm as needed. The arm features multiple articulation points and locking mechanisms. Adjust the angle and height by pressing the release buttons or rotating the joints until the desired position is achieved. The small support joints are designed to lock the arm securely once positioned.
- Adapter Selection: Choose the appropriate adapter for your model kit. The kit includes various types to accommodate different connection ports on model figures.
- Model Attachment: Carefully attach the selected adapter to your model kit, then connect the adapter to the end of the support arm. Ensure a snug fit to prevent accidental detachment.

Figure 4.1: A close-up view of the adjustable arm, highlighting its articulation points and locking mechanism that allows for precise positioning and secure holding of model kits.
5. Operating Instructions
Once assembled, the Action Base 4 allows for dynamic display of your model kits:
- Posing: Adjust the arm's position to achieve various poses, from static standing to mid-air action stances. The locking joints ensure the arm maintains its position.
- Stability: The wide hexagonal bases provide excellent stability. For heavier models, ensure the center of gravity is balanced over the base.
- Accessory Support: Sub-arms can be utilized to hold weapons, shields, or other accessories, enhancing the display.

Figure 5.1: This image demonstrates a model kit posed dynamically in an aerial action stance, supported by the adjustable arm of the Action Base 4.

Figure 5.2: An example of a model kit securely displayed in a static, standing pose using the Action Base 4. The base provides stability for various model scales.
6. Configuration Options
The modular design of the Action Base 4 offers several display configurations:
- Single Base Display: Use one hexagonal plate with a support arm for a single model.
- Multi-Base Display: Connect two or three hexagonal plates to create a larger, more stable platform for multiple models or larger figures.
- Independent Stands: Each of the three hexagonal bases can function as an independent stand with its own arm (if additional arms are acquired separately), allowing for flexible arrangement.

Figure 6.1: An example of combining multiple hexagonal base plates to create a larger display area, accommodating several model kits simultaneously for a diorama or group display.

Figure 6.2: This image illustrates the modularity of the Action Base 4, showing two model kits displayed on individual base units, demonstrating the flexibility of the system.
7. Maintenance
To ensure the longevity and appearance of your Action Base 4:
- Cleaning: Wipe the base and arms with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, followed by immediate drying. Avoid harsh chemicals or abrasive cleaners.
- Storage: When not in use, store the components in a cool, dry place away from direct sunlight to prevent material degradation.
8. Troubleshooting
- Arm Instability: If the support arm feels unstable or sags, ensure all locking joints are fully engaged. Re-adjust the arm and confirm the connection points are secure. For very heavy models, consider using multiple support arms or ensuring the model's weight is distributed evenly over the base.
- Model Detachment: If the model detaches from the adapter, verify that the correct adapter type is being used for your model kit and that it is fully inserted into the model's connection port.
- Tight Joints: If joints are too tight, apply a small amount of silicone lubricant (not petroleum-based) to the moving parts. Avoid excessive force during assembly or adjustment.
9. Specifications
| Product Dimensions | 8 x 8 x 8 inches (approximate assembled) |
| Item Weight | 3.52 ounces |
| Model Number | BAN222131 |
| Manufacturer Recommended Age | 13 years and up |
| Manufacturer | Bandai |
| Material | Plastic (Clear) |
10. Warranty and Support
For information regarding product warranty, replacement parts, or technical support, please refer to the official Bandai Hobby website or contact your retailer. Keep your purchase receipt as proof of purchase.