Cómo personalizar tu MG RX-78-2 con piezas de terceros: Guía para principiantes
By Cool Dragon Hobby | Published: 2026-08-19
Category: Guías prácticas
Aprende a personalizar tu MG RX-78-2 con piezas de terceros. Desde elegir las piezas adecuadas hasta modificaciones paso a paso, esta guía cubre todo lo que un principiante necesita saber.
The RX-78-2 Gundam is the iconic granddaddy of all Gundams, and the Master Grade (MG) version is a favorite among builders. But after building the same kit a few times, you might want to make it truly yours. That's where third-party parts come in. They offer a world of possibilities to enhance, modify, and personalize your MG RX-78-2 without breaking the bank.
In this beginner's guide, we'll walk you through the basics of customizing your MG RX-78-2 with third-party parts. We'll cover everything from choosing the right parts to step-by-step mods, and even how to add decals for that finishing touch. By the end, you'll have the confidence to embark on your own custom Gundam build.
Why Customize with Third-Party Parts?
Third-party parts are aftermarket accessories made by companies other than Bandai. They range from resin conversion kits to metal parts, water decals, and even entire third-party model kits that are compatible with Bandai's MG RX-78-2. The main advantage is variety: you can find parts that change the silhouette, add detail, or even transform your Gundam into a completely different variant.
Cost is another factor. Official Bandai expansion sets can be pricey, while third-party options often offer similar quality at a fraction of the price. Plus, they allow for more creativity. For example, you can mix and match parts from different series to create a unique hybrid. This is a core aspect of the custom Gundam build hobby.
- Third-party parts are generally more affordable than official expansions.
- They offer unique designs not available from Bandai.
- You can mix parts from different kits to create a one-of-a-kind Gundam.
Choosing the Right Third-Party Parts
When selecting third-party parts, consider the scale and compatibility. For MG RX-78-2, you'll want parts designed for 1/100 scale. Check reviews and forums to ensure the parts fit well. Some popular third-party brands include DABAN, which is known for its high-quality 1/100 kits, and EVO Studio, which specializes in water decals.
If you're looking for a dramatic change, consider a conversion kit that alters the RX-78-2's appearance. For a more subtle upgrade, metal parts like inner frames or thrusters can add weight and detail. Water decals are another great way to add intricate markings without painting. Remember, the goal is to enhance your build, so choose parts that match your skill level and desired outcome.
- Always check compatibility with your MG RX-78-2 version.
- Read reviews from other builders to gauge quality and fit.
- Start with simple parts like decals or metal details before diving into resin conversions.
Essential Tools and Preparation
Before you start, gather the right tools. You'll need a hobby knife, sandpaper or files, plastic cement or super glue, and possibly a pin vise for drilling. If you're working with resin parts, you'll also need safety gear like a mask and gloves, as resin dust can be harmful.
Prepare your workspace with good lighting and ventilation. Clean your MG RX-78-2 parts by washing them in warm soapy water to remove mold release agents. This ensures paint and glue adhere properly. For third-party parts, test-fit them first to see where adjustments are needed. Sand down any rough edges or flash.
- Wash all parts before assembly to remove residue.
- Test-fit third-party parts before applying glue or paint.
- Use a hobby knife and sandpaper to clean up nubs and seams.
Step-by-Step: Adding a Third-Party Backpack
A common mod is replacing the RX-78-2's backpack with a third-party option that adds more thrusters or wings. For this tutorial, we'll use a generic third-party backpack. First, carefully remove the original backpack from the body. Then, test-fit the new backpack to see how it attaches. You may need to modify the connection point with a pin vise and some plastic cement.
Once the fit is secure, you can paint the backpack to match your color scheme. Use masking tape to protect areas you don't want painted. After painting, let it dry completely before attaching. Finally, pose your Gundam to show off the new backpack. This simple mod can dramatically change the silhouette and make your RX-78-2 stand out.
- Use a pin vise to drill holes for custom pegs if needed.
- Apply thin layers of cement for a strong bond.
- Paint in a well-ventilated area and use thin coats.
Adding Water Decals for Detail
Water decals are an easy way to add intricate details without painting. For your MG RX-78-2, you can use third-party decals from brands like EVO Studio. For example, the MGSD Destiny Gundam EVO Water Decal is designed for a different kit, but you can use similar decals to add warning signs and mechanical details to your RX-78-2.

To apply, cut out a decal, soak it in water for a few seconds, then slide it onto the surface. Use a cotton swab to position it and remove excess water. Seal it with a clear coat to protect it. Decals can transform a plain build into a professional-looking model.
- Use a decal setter and softer for better adhesion.
- Apply decals on glossy surfaces for best results.
- Seal with a matte or gloss topcoat.
Showcasing Your Custom Build
Once your MG RX-78-2 is customized, it's time to show it off. You can display it in a dynamic pose, take photos, or even enter it in a local Gundam build competition. Sharing your work online is a great way to connect with other builders and get feedback.
Remember, customization is about personal expression. Don't be afraid to experiment and make mistakes. Each build teaches you something new. With third-party parts, the possibilities are endless, and your RX-78-2 can become a reflection of your creativity.
- Take photos in natural light to show off details.
- Join online communities to share your build and get tips.
- Consider entering competitions to challenge yourself.
Customizing your MG RX-78-2 with third-party parts is a rewarding experience that lets you make the kit truly yours. Whether you're adding a new backpack, decals, or other accessories, the key is to start simple and build your skills. If you're looking for high-quality third-party parts, check out the selection at Cool Dragon Hobby, including the GG MGSD Wing Gundam Zero EW Rebellion Ver. and the DABAN 8807 Astray Red Frame Mars Jacket. Happy building!



