High-fidelity 3D model of the G&G M4 AEG lower receiver, reproduced at 1:1 scale from direct measurements of the original part.
Delivered in STEP (.stp) format, ready to use in any CAD software or as a base for modification, adaptation, or 3D printing projects.
This is not a print or an approximation: it is an accurate reverse-engineered model, intended for designers, makers, and technicians who need a precise reference of the G&G lower as a starting point.
What’s included
- 1× STEP (.stp) file of the G&G M4 AEG lower receiver at 1:1 scale
- Complete geometry with holes, channels, and dimensional references true to the original
- Compatible with: Fusion 360, SolidWorks, FreeCAD, Onshape, Rhino, and any STEP-compatible CAD software
What it’s for
- Reference base for designing M4 AEG lower modifications and adaptations
- Tolerance checking and dimensional compatibility verification with other components
- Starting point for custom lowers, HPA conversion kits, or other gearbox parts
- Reverse engineering documentation for personal or commercial projects
Verified compatibility
| Component | Reference |
|---|---|
| Original brand | G&G |
| Replica type | M4 AEG |
| Model scale | 1:1 (real dimensions) |
| Delivery format | STEP (.stp) |
| Compatible software | Fusion 360, SolidWorks, FreeCAD, Rhino, Onshape |
Usage notes
- This model is intended as an engineering reference, not as a directly printable part
- If you use it as a base for a printable lower, check the Universal Gearbox V2 Lower models available in the store for mounting and hardware references
- Small dimensional variations may exist between different generations of the G&G lower. This model corresponds to the version directly measured by the author
About the author’s logo
This model is shared openly as a resource for the community.
If you use it as a base for your own work, keeping the author’s logo is a way to acknowledge their effort.
It’s not mandatory, but it is greatly appreciated. 🙏
Manuals and support
If you have questions about using the STEP file or want to combine this model with any of the available alignment kits, you can check the Manuals section on the website or ask directly in the project’s Discord server.
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Frequently asked questions
What material and dimensions apply to 3D Model 1:1 Lower G&G Combat M4 AEG · STEP File?
The public product data does not declare a material or finished dimensions for this design. Check the images, downloadable files, and the exact manufacturing or printing setup before producing it.
What is 3D Model 1:1 Lower G&G Combat M4 AEG · STEP File compatible with?
The published tags and categories identify this design with m4, aeg, g&g, lower receiver, step file, cad. Confirm the exact platform, revision, and mounting points before ordering.
How do I install or prepare 3D Model 1:1 Lower G&G Combat M4 AEG · STEP File?
Read the installation notes in the product description, inspect the supplied files and images, and test alignment before final fastening. The required tools, fasteners, printing parameters, or post-processing depend on the specific build.
What are the real-world uses for 3D Model 1:1 Lower G&G Combat M4 AEG · STEP File?
This design is intended for projects related to m4, aeg, g&g, lower receiver, step file, cad. It is useful for a compatible repair, conversion, prototype, replacement, or custom build when the published fitment and project requirements match.
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