Poseidon 1/72 Upscale Crossbone X-1: What to Expect

Quick Answer

If you want a dramatically larger, more detailed Crossbone X-1 than the standard RG and are comfortable with third-party resin work, the Poseidon Model 1/72 Upscale kit is a compelling pre-order. It's not for beginners or those expecting a snap-fit Bandai experience.

What Makes the Poseidon Crossbone X-1 Different

This isn't a standard Bandai release. Poseidon Model takes the RG Crossbone X-1 design and scales it up to 1/72, which makes it significantly larger and allows for more surface detail and mechanical separation. The kit is made of resin, not polystyrene, so the building process involves cleaning, test-fitting, and often using CA glue rather than snap-fit assembly.

Because it's a third-party resin conversion kit, you won't find official Bandai instructions or part tolerances. Expect to do some sanding, gap-filling, and possibly modification. The reward is a display piece that stands out from any standard Gundam kit on your shelf.

Pre-Order Considerations

The Poseidon 1/72 Crossbone X-1 is a pre-order item with an estimated arrival of November 2026. Pre-ordering secures your copy from the limited production run, but it also means you commit to a purchase months in advance. Cool Dragon Hobby lists a catalog price of $35.50 (compared to a $50.00 reference price), so the initial cost is reasonable for a resin kit of this scale.

Keep in mind that third-party resin kits sometimes have delays or changes from the initial render. If you're flexible with timelines and excited about a unique build, pre-ordering makes sense. If you prefer to see final product photos or reviews first, waiting until after release is safer.

Build Difficulty and Required Skills

Resin kits require different skills than plastic model kits. You'll need to wash resin parts to remove mold release, carefully cut parts from casting blocks, and use epoxy or cyanoacrylate glue. Painting is almost always required because resin parts come in a uniform gray or cream color, not molded-in color like Bandai kits.

The 1/72 scale means parts are larger and easier to handle than 1/144 resin kits, but the upscaled RG design includes many small details that demand precision. If you've built a few Bandai Master Grade or Real Grade kits and want to level up, this is a good step. If you've never worked with resin, start with a simpler third-party kit first.

Decision Rules for the Poseidon 1/72 Crossbone X-1

• Scale and Detail: At 1/72, this kit is roughly 25% larger than a standard 1/100 Master Grade, giving you more room for paint and detail work. Expect crisp panel lines and mechanical separation inspired by the RG design.
• Material and Assembly: Resin construction means no snap-fit. You'll need glue, clamps, and patience. Parts may require significant cleanup. This is not a weekend build. Set aside several weeks for completion if you're new to resin.
• Pre-Order vs. Wait: Pre-ordering guarantees a copy from the limited run at a lower price. Waiting lets you see real build reviews and avoid potential delays or quality issues. If you're unsure about resin, wait for in-hand reviews.

Product Facts

• (Pre-Order) Poseidon Model 1/72 Upscale RG Crossbone X-1 (ETA: November 2026): Poseidon Model 1/72 Upscale RG Crossbone X-1 is a pre-order item expected November 2026, priced at USD 35.50 (catalog comparison USD 50.00). The price is lower than many resin kits of this scale, but the pre-order commitment means you pay now for a kit that ships months later.

  

Who Should Pre-Order?

Best For

• Experienced modelers who want a larger, more detailed Crossbone X-1 than any Bandai release
• Collectors of third-party resin kits who appreciate unique interpretations of classic mobile suits

Not For

• Beginners or modelers who prefer snap-fit, out-of-box builds
• Anyone who needs a kit immediately or cannot tolerate potential pre-order delays