A Gundam kit box can tell you almost everything before you see a single runner: grade, scale, release line, and often a version designation. Understanding Gundam grade differences helps you spend for the experience you actually want, whether that means a quick 1/144 weekend build, a detailed 1/100 centerpiece, or a large-format display project with LEDs and a long build schedule.
Grades are not simply a ladder from "easy" to "hard." They signal a combination of engineering style, part count, scale, articulation, surface detail, color separation, and price. An excellent HG can be a more satisfying purchase than an MG if you prefer compact displays, while a newcomer with patience may have a great first experience with an RG or MG. The right choice depends on your workspace, budget, preferred mobile suit, and how much of the hobby process you want on the bench.
What a Gundam Grade Actually Tells You
Bandai uses grades to organize Gunpla into distinct product lines. Each line has common characteristics, but releases can vary. A newer HG may have sharper color separation and articulation than an older one, and a modern MG may use a very different internal structure from an early release. Grade provides a useful expectation, not a guarantee that every kit follows one exact formula.
Scale is related to grade but is not the same thing. Most EG, HG, and RG kits are 1/144 scale. MG and Full Mechanics releases are commonly 1/100, while PG is generally 1/60. Mega Size kits are usually 1/48. SD kits use stylized proportions rather than a consistent display scale. That distinction matters when you are planning a shelf, building a collection around one scale, or choosing an action base.
A higher grade also does not automatically mean a better finished model for every collector. Larger kits offer more room for mechanical detail and inner frames, but they cost more, demand more display space, and can take substantially longer to complete. Smaller kits are easier to store, easier to collect in volume, and ideal for trying new panel-lining, decal, weathering, or painting techniques.
Gundam Grade Differences at a Glance
Entry Grade: simple assembly, strong results
Entry Grade, or EG, is designed to make Gunpla approachable. These kits use a low part count and straightforward construction, with effective color separation for a fast, clean result. Many can be assembled without traditional nippers, although a quality pair of nippers still produces cleaner gates and a more polished finish.
EG is a smart first kit for younger builders, returning hobbyists, or anyone who wants a satisfying model in a short session. The trade-off is less mechanical complexity, fewer accessories, and simpler articulation than higher grades. That simplicity is intentional, not a flaw. EG kits also make excellent candidates for a first panel-line wash or topcoat experiment.
High Grade: the core 1/144 collection line
High Grade, or HG, is where many Gunpla collections begin and keep growing. Most HG kits are 1/144 scale, affordable, shelf-friendly, and available across a broad range of Gundam series and mobile suit designs. Their builds are usually direct and accessible, but modern HG engineering can deliver impressive articulation, layered armor, and an expressive final pose.
HG offers the best balance for builders who want to collect multiple suits without committing to the cost and footprint of 1/100 kits. Expect stickers for select color details on many releases, though newer kits often reduce sticker use through better part separation. HG is also a favorite for customizers: the smaller investment makes kitbashing, scribing, and repainting feel less risky.
Real Grade: 1/144 detail with a denser build
Real Grade, or RG, packs a high-detail approach into the same commonly used 1/144 scale as HG. RG kits typically include more parts, more color-separated components, finer surface detail, and a more involved assembly sequence. They often aim for a realistic mechanical look, with layered armor and detailed internal construction visible throughout the build.
RG is a strong choice for builders who love 1/144 displays but want a project that feels closer to a larger kit. It is not necessarily difficult, but it rewards careful runner organization, controlled nub cleanup, and attention to the manual. Tiny parts and tighter assemblies can be less forgiving than HG. Some early RG releases also use construction systems that require gentle handling, while many newer RG kits feature more stable, highly refined engineering.
Master Grade: the classic 1/100 experience
Master Grade, or MG, is usually 1/100 scale and gives builders more physical room to enjoy layered assemblies, opening hatches, articulated hands or weapons, and detailed inner frames. The larger size makes individual parts easier to handle than their RG counterparts while still offering a substantial, multi-session project.
MG is often the sweet spot for builders seeking display presence without moving into the cost, scale, and time commitment of PG. It is especially satisfying for a favorite mobile suit you want to detail with waterslide decals, metallic paint accents, or a carefully applied matte topcoat. Not every MG is equally complex, however. Older MG releases may be more straightforward, while newer or premium variants can be highly intricate.
MG Ver. Ka deserves a separate note. Ver. Ka is not a grade. It identifies a design or revision associated with Hajime Katoki, often with distinct proportions, markings, and engineering choices. An MG Ver. Ka is still an MG, but it may have a more involved build, extensive decals, or transformation features than a standard release.
Perfect Grade and MGEX: premium build projects
Perfect Grade, or PG, is generally 1/60 scale and built for collectors who want a major project. These kits are large, expensive, and engineering-heavy, often featuring complex internal frames, extensive armor separation, light-up components on selected releases, and substantial display presence. A PG requires clear workspace, patience, and a display plan before the final backpack or weapon is even attached.
MGEX is a premium Master Grade line rather than a larger scale. It remains 1/100, but emphasizes a particular high-end feature or construction goal, such as lighting, layered materials, or advanced mechanical presentation. Both PG and MGEX are best approached as centerpiece builds. They reward careful planning, but they are not automatically the best place to start if you are still learning basic cleanup and panel lining.
Full Mechanics, Mega Size, and SD
Full Mechanics generally delivers 1/100 scale presence with an emphasis on satisfying construction and strong exterior detail. Its internal complexity can differ from MG, so think of it as its own line rather than a direct substitute. It can be a great choice when you want a large, impressive mobile suit without requiring every feature of a traditional MG build.
Mega Size kits, typically 1/48, prioritize scale and visual impact. Their parts are large, their finished models command attention, and their builds are generally less dense than PG. They suit collectors with room for a statement piece or builders who want to add paint, weathering, and custom detail to a big canvas.
SD kits use deliberately super-deformed proportions: oversized heads, compact bodies, and a stylized silhouette. They can be quick, affordable, and full of personality, but modern SD lines vary widely in engineering. Some focus on simple assembly, while others offer surprising articulation, color separation, and transformation features. SD is not only for beginners. It is a distinct collecting style with its own appeal.
Choose by Your Build Goal, Not Just the Grade
For a first Gunpla, EG and HG are usually the safest recommendations because they teach the fundamentals without demanding a large investment. If you already enjoy careful assembly and want a compact but detailed project, RG is a natural next step. If your favorite suit deserves a larger display and a longer, more tactile build, MG or Full Mechanics makes sense.
PG, MGEX, and Mega Size are purchases to make with intention. Consider where the finished kit will live, how you will transport it if needed, and whether you want to paint or detail it. A 1/60 or 1/48 kit can turn a small shelf into a dedicated display zone quickly.
Your tool selection should scale with your goals, too. A clean basic build benefits from sharp nippers, a hobby knife, sanding tools, and a panel liner. RG, MG, and premium releases make good use of fine tweezers, decal supplies, sanding sponges, and a topcoat suited to the finish you want. A-Z Toy Hobby’s broader range of paints, tools, and finishing supplies makes it practical to start with a kit and add only the materials your next project needs.
The best grade is the one that makes you want to cut the first part from the runner. Pick the mobile suit you genuinely like, choose a scale that fits your display, and let your next build set the direction for the one after it.
