Gundam Model Grades Explained What Is The Difference Between High Grade And Master Grade

Gundam plastic models, known as Gunpla, have evolved into a global hobby with thousands of kits spanning multiple product lines and quality tiers. For newcomers and even intermediate builders, navigating the different grades—especially High Grade (HG) and Master Grade (MG)—can be confusing. Each offers distinct advantages in terms of complexity, detail, poseability, and price. Understanding these differences isn't just about choosing a kit; it's about aligning your build goals with the right level of craftsmanship.

Gunpla grading is not arbitrary. It reflects Bandai’s structured approach to balancing accessibility, realism, and engineering excellence. Whether you're building for display, customization, or the joy of assembly, knowing what separates an HG from an MG ensures you invest time and money wisely.

Understanding Gunpla Grades: The Bigger Picture

Before diving into the specifics of High Grade and Master Grade, it's important to understand that Gunpla grades are part of a broader classification system. These grades indicate scale, part count, internal structure, articulation, and overall fidelity to the original mobile suit designs from the Gundam anime universe.

The most common grades include:

• High Grade (HG): 1/144 scale, beginner-friendly, affordable.
• Master Grade (MG): 1/100 scale, advanced detail, inner frame, higher cost.
• Perfect Grade (PG): 1/60 scale, ultra-detailed, multi-layered skeleton, premium pricing.
• Real Grade (RG): 1/144 scale but with MG-level engineering in a smaller form.
• Entry Grade (EG): Budget-friendly, simplified design, minimal tools required.

While all grades share core principles like snap-fit assembly and color-molded plastic, the leap from HG to MG represents one of the most significant upgrades in the Gunpla experience.

High Grade: The Gateway to Gunpla Building

Introduced in 1990, High Grade kits revolutionized model accessibility by offering detailed 1/144 scale builds without requiring glue or paint. Today, HG remains the most popular entry point for new modelers. These kits strike a balance between affordability, manageable build time, and visual appeal.

Modern High Grade kits, particularly those under the HGUC (Universal Century) and HG Build Fighters lines, feature advanced engineering such as polycaps for joint stability, layered armor, and surprisingly good articulation for their size. Many include effect parts for weapons and optional beam effects.

Despite their smaller scale, recent HG releases often incorporate pseudo-inner frames—structural skeletons that improve poseability. However, they still lack the true multi-jointed internal framework found in higher-tier models.

Master Grade: Precision, Scale, and Realism

Launched in 1995, Master Grade kits were designed for enthusiasts seeking museum-quality results. At 1/100 scale, MG models are nearly 50% larger than their HG counterparts, allowing for significantly more surface detail, mechanical depth, and structural sophistication.

The defining feature of an MG kit is its fully articulated inner frame—often called an “advanced MS joint” system. This skeleton mimics human biomechanics with ball joints, sliding hips, and rotating torsos, enabling dynamic poses that HG kits can’t match. Armor pieces are then layered over this frame, replicating the modular construction seen in the anime.

MG kits typically contain 500–1,000+ parts. While still snap-fit, the increased complexity demands greater attention to instructions and patience during assembly. Some kits include photo-etched parts, metal stickers, or wire cables for added realism—features rarely seen in HG lines.

“Master Grade kits represent the sweet spot between engineering ambition and build feasibility. They’re complex enough to challenge experienced modelers but refined enough to avoid frustration.” — Kenji Takahashi, Gunpla Designer & Hobby Journalist

Key Differences Between HG and MG Kits

To clarify the distinctions, here’s a side-by-side comparison of critical factors:

This table underscores why MG kits command a premium. You're not just paying for size—you're investing in engineering depth, display presence, and long-term satisfaction.

When to Choose High Grade vs. Master Grade

Selecting between HG and MG depends on several personal and practical factors:

Budget Constraints

If you're exploring Gunpla casually or on a tight budget, HG kits offer excellent value. You can collect multiple units for the price of one MG. They’re also ideal for younger builders or those testing interest in the hobby.

Display Space

MG kits require more shelf space. A single MG Unicorn Gundam stands taller than most action figures and needs room to be posed dynamically. If display area is limited, HG’s compact size becomes a major advantage.

Time Investment

An MG build is a project. It may span multiple sessions, especially if you're adding panel lining, dry brushing, or custom wiring. HG kits can often be completed in a single afternoon, making them perfect for quick wins or travel builds.

Customization Goals

For modelers interested in kitbashing or mechanical modifications, MG kits provide more real estate and structural integrity. Their inner frames serve as excellent bases for scratch-building or integrating LED lighting. HG kits can be customized, but their smaller scale limits fine detailing.

Mini Case Study: From HG Beginner to MG Enthusiast

Take the example of Marcus L., a 28-year-old graphic designer from Chicago. He started with a $25 HG Strike Freedom Gundam after seeing a friend’s display. The build took him three hours, and while he was proud of the result, he noticed limitations in poseability—particularly in the shoulders and hips.

Intrigued, he researched online forums and watched build videos comparing HG and MG versions of the same mobile suit. Inspired, he saved up for the MG Strike Freedom, a $90 kit released in 2010. The build spanned two weekends. He spent extra time adjusting the inner frame tension and polishing joints for smoother movement.

The final result was transformative. The MG model stood confidently in combat stances, could balance on one foot, and displayed intricate mechanical details visible only at close range. Marcus now owns seven MG kits and runs a small Instagram page documenting his builds. His journey reflects a common path: starting with HG to learn fundamentals, then advancing to MG for deeper engagement.

Step-by-Step Guide: Choosing Your First Major Gunpla Kit

Follow this process to make an informed decision between HG and MG:

1. Assess Your Experience: Have you built any plastic models before? If not, start with a modern HG.
2. Set a Budget: Decide how much you’re willing to spend. Remember to factor in tools like nippers and tweezers.
3. Check Shelf Space: Measure your display area. Can it accommodate a 22cm-tall model?
4. Research the Kit: Look up reviews, build videos, and fan photos. Pay attention to complexity warnings.
5. Consider Long-Term Interest: Are you likely to continue building? If yes, investing in an MG might be worth it.
6. Purchase and Build: Follow instructions carefully. Take breaks to avoid fatigue.
7. Display or Customize: Decide whether to keep it stock or enhance it with weathering or lighting.

This methodical approach prevents buyer’s remorse and sets realistic expectations.

Frequently Asked Questions

Can I build a Master Grade kit as a beginner?

Yes, but with caveats. Modern MG kits are designed with clearer instructions and better part organization. However, their complexity can be overwhelming. Beginners should consider completing 2–3 HG kits first to develop basic skills like sprue separation, nub removal, and joint calibration.

Do Master Grade kits need glue or paint?

No. Like all official Gunpla, MG kits are snap-fit and color-molded. Glue is unnecessary for structural integrity. That said, many advanced builders use cement for permanent joints or add paint for weathering effects, metallic finishes, or custom color schemes.

Is there a noticeable quality gap between old and new HG/MG kits?

Yes. A 1999 HG kit lacks the articulation and engineering of a 2020 HG. Similarly, older MGs like the 1995 RX-78-2 have simpler frames compared to modern ones like the MG Wing Gundam Zero (EW). Newer kits benefit from decades of design refinement, so prioritize recently reissued or brand-new models when possible.

Final Checklist Before Buying

• ✅ Confirmed scale and approximate size
• ✅ Checked current market price and availability
• ✅ Reviewed build time estimates
• ✅ Verified tool requirements (nippers, cutter, tweezers)
• ✅ Watched at least one full build video
• ✅ Ensured adequate workspace and lighting
• ✅ Considered future display options (stands, cases)

Conclusion

The choice between High Grade and Master Grade isn’t about which is “better”—it’s about which is better for you. High Grade delivers fast, satisfying builds with impressive results for the price. Master Grade offers a deeper dive into mechanical modeling, rewarding patience with stunning realism and engineering elegance.

Many lifelong Gunpla fans maintain collections across both grades, using HG for variety and MG for centerpiece displays. The hobby thrives on progression, creativity, and personal expression. Whether you start small or aim high, each kit you build adds to a growing legacy of craftsmanship.