1:1 scale 3D model of the internal gearbox (inner chassis) of the Tokyo Marui MP7A1 GBB, delivered in STEP format for CAD design, reverse engineering, custom part development, or upgrade components.
This resource is intended for makers, technicians, and designers who want to create parts compatible with the internal mechanics of the TM MP7 GBB without physically disassembling the replica.
What’s Included
- STEP file (.step / .stp) containing the full 3D model of the TM MP7A1 GBB gearbox/inner chassis.
- Geometry faithful to the real dimensions of the original Tokyo Marui replica, including functional areas such as the bolt, trigger bar, sear, loading nozzle, and internal chassis.
- Compatible with major CAD software: Fusion 360, FreeCAD, SolidWorks, Rhino, and any software supporting STEP format.
Reference Specifications (Original TM MP7A1 GBB)
| Parameter | Value |
|---|---|
| Manufacturer | Tokyo Marui |
| System | Gas Blow Back (GBB) |
| Overall length | 382 mm (stock folded) / 588 mm (extended) |
| Inner barrel length | ~165 mm |
| Caliber | 6 mm BB |
| Fire modes | Semi / Full Auto / Safe |
| Recommended gas | 134a / Green Gas |
| Magazine capacity | 40+1 rounds |
| File format | STEP (.step / .stp) |
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