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Gundam Marker EX Heavy Gun Metallic pen close up with a black barrel, gun metal cap and yellow Gundam Marker EX label.
Gundam Marker EX Heavy Gun Metallic paint swatch on a rounded dome-shaped plastic part showing the dark gun metal finish.
Gundam Marker EX Heavy Gun Metallic in its retail hang pack, with Japanese labelling for alcohol-based ink and a pen tip for fine painting.
Gundam Marker EX Heavy Gun Metallic pen close up with a black barrel, gun metal cap and yellow Gundam Marker EX label.
Gundam Marker EX Heavy Gun Metallic paint swatch on a rounded dome-shaped plastic part showing the dark gun metal finish.
Gundam Marker EX Heavy Gun Metallic in its retail hang pack, with Japanese labelling for alcohol-based ink and a pen tip for fine painting.

Gundam Marker EX - Heavy Gun Metallic

$7.99 AUD
GSI Creos Gundam Marker EX in Heavy Gun Metallic (XGM05P), an alcohol-based paint marker in a dark gun metal shade. Described as having excellent opacity, and aimed at inner frames and mechanical details on Gunpla.
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Key features

1. Dark gun metal shade: suited to inner frames, joints and exposed mechanical detail.

2. Alcohol-based paint marker: from the Gundam Marker EX range, with a pen tip suited to fine painting.

3. High opacity: described as having excellent opacity for good coverage on plastic.

Returns & Refunds
  1. Australian Consumer Law Compliance: Mecha Express Australia strictly adheres to the Australian Consumer Law for all transactions.
  2. Contact Process for Issues: If you encounter any issues with your purchase, you should first contact Mecha Express Australia via email at support@mechaexpressaustralia.com.au, describing the problem and providing photos and contact details.
  3. Response and Advice: Mecha Express Australia will promptly respond to your email to discuss the issue and advise on the next steps.
  4. USA Customer Policy: USA customers are not eligible for returns, refunds, or compensation for any issues including lost, stolen, or incorrectly delivered items.
  5. Return Conditions for AU and NZ: Items must be returned in their original, undamaged, and resalable packaging if requested by Mecha Express Australia.
  6. Refund and Replacement Policy: Australian and New Zealand customers may receive replacements or refunds for reasons like change of mind (before dispatch with a restocking fee), incorrect items, lost/stolen/damaged parcels during delivery, missing parts, or inability to supply an item. Mecha Express Australia will give you a Reply Paid number for you to return these items at no cost to you at your local Australia Post outlet.
  7. Non-refundable Items: Items that cannot be refunded include those that are opened, used, partly assembled, lost parts, self-damaged items, or items found with no issues.
  8. Duplication Promise: Returns are accepted if you receive a duplicate gift, provided the item is returned in resalable condition and at your own expense.
  9. Pre-Order Cancellation: While pre-order refunds are typically not offered, requests will be considered but subject to a 10% restocking and administration fee.
  10. Restocking and Administration Charge: A 10% fee applies to canceled orders or refunds to cover non-refundable third-party fees, calculated on the total value of the products and shipping costs.
Series FAQ

Gundam Marker EX - Heavy Gun Metallic

Heavy Gun Metallic: a dark gun metal for frames and mechanical detail

The GSI Creos Gundam Marker EX Heavy Gun Metallic (XGM05P) is an alcohol-based paint marker in a dark gun metal shade. It is part of the Gundam Marker EX range, and it is aimed at inner frames and mechanical details on Gunpla and other plastic models. The pack describes it as paint for plastic models with a pen tip suited to fine painting work.

What it does

Use it where a dark metallic reads best: inner frames, joints, vents, barrels and exposed mechanical parts. It is described as having excellent opacity. Test it on a spare runner part first, so you know how it behaves on your plastic and your top coat.

What makes it special

  • Alcohol-based paint: a different ink type to the water-based Real Touch markers.
  • Dark gun metal shade: suited to inner frames and mechanical detail.
  • High opacity: described as having excellent opacity.
  • Fine-work pen tip: the pack calls out a tip suited to fine painting.

What's in the pack

  • One Gundam Marker EX Heavy Gun Metallic (XGM05P)

Compatible kits

It is made for Gunpla and other plastic models. Browse the Gundam Markers collection for more colours and finishes.

Product specifications

  • Brand: GSI Creos (Gundam Marker EX)
  • Product code: XGM05P (GM05P)
  • Colour: Heavy Gun Metallic (dark gun metal)
  • Paint: Alcohol-based
  • Retail pack size and weight: 15 x 4.2 x 1.6 cm, 20 g
  • Barcode: 4973028739497

Perfect for

  • Builders detailing inner frames and mechanical parts
  • Anyone adding a dark metallic accent without an airbrush
  • Collectors finishing weapons and joints

Fast Australian shipping

Dispatched same day from Brisbane if ordered before 2pm AEST on weekdays. Free shipping Australia-wide on orders over $199. Packed securely in a sturdy outer box with water-soluble cornstarch void fill that dissolves cleanly in the sink. Genuine Australian stock in hand, not ordered through an overseas proxy.

Build notes

Test the marker on a spare part first. Alcohol-based paint can behave differently on different plastics and coatings, so check how it sits before you mark the finished kit.

Last updated: 15 October 2026 (AEST)

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Frequently Asked Questions

I'm new to Gunpla. Are these GSi Creos markers beginner-friendly?

Absolutely! GSi Creos markers are designed for both beginners and pros. They offer precision and ease of use, making your introduction to Gunpla detailing smooth and enjoyable.

How do I choose the right marker nib for my project?

Different nibs serve varied purposes. Fine nibs are great for intricate details, while broader ones work for larger areas. Our blogs provide a detailed guide on nib usage.

Can I fix mistakes made with these markers?

Yes, you can! We have erasing markers that help correct any slips. They’re super handy and ensure your model remains flawless.

How long do the markers last? Do they dry out quickly?

With proper cap-sealing after use, GSi Creos markers have a good lifespan. Store them horizontally, away from direct sunlight, for maximum longevity.

Are there sets available, or do I buy individual colours?

Both options are available. You can buy individual colours to suit specific needs or go for our curated sets that offer a spectrum of shades for diverse projects.

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