Complete Guide: How to Read a Gunpla Assembly Manual 📖
The Manual: Your Map as a Builder
Every modeler, beginner or expert, knows it: opening a Gunpla box is a magical moment.
Among the bags full of runners and colored parts, you'll find the heart of the kit — the Bandai assembly manual.
For beginners, however, that booklet full of numbers, arrows, and symbols can seem like a puzzle.
In reality, it's an extremely logical and precise guide.
Here's how to learn to correctly read the Gunpla manual, step by step.
🔹 1. Understanding the Manual's Structure
The Bandai manual is designed to be universal, understandable even without knowing Japanese.
It usually consists of 3 main sections:
- Cover: shows the completed model, name, scale (HG, RG, MG, PG)
- Runner Index: a visual list of the plastic sprues (A, B, C, D...) with all numbered parts.
- Assembly Instructions: step-by-step diagrams with lines, numbers, and symbols indicating the order and orientation of the parts.
🔹 2. How to Read Runners and Part Codes
Each sprue (or runner) is identified by a letter:
- "A", "B", "C"... for different colored plastic molds.
Each part on that sprue has an engraved number (e.g., "A12" or "B5").
👉 When the manual says "A12", it means you need to look for part number 12 on runner A.
Cut it with model kit nippers and finish the edges with a file or cutter.
💡 Tip: before detaching the parts, always check that the number and shape match the manual's drawing — some similar parts can be deceiving.
🔹 3. Essential Symbols and Indications
The Gunpla manual uses standard icons to guide you through assembly:
🔹 4. Colors and Decals
At the end of the manual, you'll always find a page dedicated to the color guide and decals.
- The color guide shows paint mixing percentages (for those who want to paint).
- The decals are indicated by numbers or symbols that correspond to the areas of the model where they should be applied.
💡 Tip: if you use water decals, always keep a precision tweezer, a cotton swab, and Softer on hand to perfectly adhere the decal to the surface.
🔹 5. Differences between HG, RG, MG, and PG
| Line | Difficulty | Manual | Notes |
|---|---|---|---|
| HG (High Grade) | Easy | Clear, essential | Perfect for beginners |
| RG (Real Grade) | Medium | Very detailed | Includes inner frame |
| MG (Master Grade) | Medium/Advanced | Complete, with internal parts | Often includes Ver. Ka instructions |
| PG (Perfect Grade) | Advanced | Rich in detail | Long and complex assembly |
🔹 6. Practical Tips for Reading the Manual Better
- Work in order: follow the step numbers without skipping — each part depends on the previous one.
- Organize the runners: arrange them alphabetically to find parts faster.
- Mark progress: use a highlighter to mark completed sections.
- Always check orientation: many common errors arise from assembling a part upside down.
🧠In summary
The Gunpla manual is not just an instruction sheet: it's a true guide of Japanese precision.
Learning to read it will make you faster, more precise, and more confident in your assemblies.
And you'll soon discover that every symbol or arrow tells a universal language of modeling.
🛒 Recommended Products for Beginner Builders
- Nippers and modeling tools set – for detaching parts without damage and finishing
- Modeling files and scalpels – for precise part finishing.
- Markers & Panel Liner – to enhance details.
- Matte/gloss and semi-gloss Top Coat – to protect the finished model.