SD Gundam Kits Explained: MGSD vs SDCS vs BB Senshi vs SDW Heroes

"SD Gundam" covers a lot of ground — video games, an anime franchise, and several very different Bandai model-kit lines that all share the same big-head, short-body proportions. This guide is about the kits. If you have ever stood in front of the SD Gundam collection wondering why one chibi Freedom looks like a display piece and another looks like a pocket toy, the answer is that they come from different lines with different engineering. Here is how MGSD, SD Cross Silhouette, SD EX-Standard, BB Senshi, SDW Heroes and SD Sangoku Soketsuden actually differ, and which one fits what you want to build.

What "SD" Means

SD stands for Super Deformed: a mobile suit redrawn with a head as big as its torso and a short, stocky body. Unlike HG, RG and MG, SD kits are not sold to a scale — kits within a line are broadly the same size whatever suit they depict. That is the appeal: a whole cast of suits fits on one shelf, and the builds are short. What has changed over the years is how much engineering Bandai puts into that small body, and that is exactly what separates the lines below.

The SD Lines, From Most Detailed to Most Playful

MGSD — Master Grade SD

Bandai's own description is the clearest: MGSD is about "integrating MG technology into the body of SD Gundam," and it calls the line its "new SD high-end brand." Each kit stands about 115 mm tall and builds an internal frame with moving gimmicks — a head that tilts on multiple axes, a torso that swings and leans, shoulders that swing outward, knee armor that slides as the leg bends. Bandai also brings its newer materials to the line: Real Metallic Gloss Injection for metal parts and "Reflection Cut" clear parts in the eyes and wing binders. The lineup is small and deliberate; Freedom opened the line in January 2023, followed by Gundam Barbatos, Wing Gundam Zero EW, Gundam Aerial, Destiny Gundam and Kshatriya. Our MGSD lineup guide covers every release in detail.

SDCS — SD Gundam Cross Silhouette

Cross Silhouette is the customizer's SD line. Bandai describes it as the series "where you can enjoy two silhouettes": every kit builds on the classic SD frame, but drop in the taller "Cross Silhouette frame" and the same armor takes on a longer body and a wider range of motion. Bandai sells "Silhouette Booster" expansion sets in several colors — CS-frame parts, swing-hip joints, thigh parts and extra hands — so you can keep upgrading the frame under kits you already own. The line ranges from Witch from Mercury and SEED Freedom suits to the Hello Kitty collaborations.

SD EX-Standard

The entry tier. SD EX-Standard kits are small, quick builds "equipped with 3 mm joints in various places" so, in Bandai's words, "you can enjoy the original form of the plastic model by combining equipment" — weapons and shields swap between kits and onto other 3 mm-joint lines. Releases include ν Gundam and Sazabi, Wing Gundam Zero, Gundam Aerial and Rising Freedom. Availability on this line moves fast, so check the product pages before planning a build around it.

BB Senshi (BB Warriors)

The classic numbered SD line, released in sequence — our shelves run from the BB100s up past BB370 — and the one most people picture when they hear "SD Gundam." It has three flavors. Straight mobile-suit kits, now often reissued as multi-kit sets such as the "C.E. Battles of Destiny" set (Freedom, Force Impulse, Strike Freedom and Destiny in one box) or the Gundam 0083 set. Musha Gundam: samurai-armored suits named for Sengoku warlords — Oda Nobunaga, Toyotomi Hideyoshi, Tokugawa Ieyasu, Naoe Kanetsugu. And Legend BB, the knight-and-fantasy branch led by Knight Gundam. Many kits swap parts between forms; the Unicorn, for example, converts between unicorn and destroy modes by exchanging parts.

SDW Heroes — SD Gundam World Heroes

Bandai lists SDW Heroes under its "SD Gundam series" as the kit line for SD Gundam World Heroes: historical and legendary heroes reimagined as Gundams — Musha Gundam The 78th, Onmitsu Gundam Aerial, Tenkamusodaishogun, Wukong Impulse and Sanzang Strike Freedom — plus mounts such as Nobunaga's War Horse. Bandai notes action-base compatibility on these kits (bases sold separately). Browse them in our SDW Heroes collection.

SD Sangoku Soketsuden

The Three Kingdoms line: Liu Bei Unicorn Gundam, Cao Cao Wing Gundam, Zhang Fei God Gundam, Zhao Yun 00 Gundam and the rest of the cast. Bandai's own claim for the series is that "with advanced proportions and a commitment to dividing parts, the highest color coding in SD history has been achieved just by assembling" — in practice these kits look painted out of the box. Find them in the SD Sangokuden collection.

Size, Proportions and Display

• MGSD is the tallest at about 115 mm, with an inner frame — it displays like a small Master Grade.
• SDCS is the line built around two body types: the stubby SD frame or the taller CS frame, your choice.
• BB Senshi, SDW Heroes, Sangoku Soketsuden and EX-Standard share the classic SD footprint and sit comfortably beside each other.
• Because SD is not a scale, none of these are "1/144"; they are sized on their own terms, which makes them easy shelf fillers around larger grades. Our Gundam scale guide shows how HG, MG and PG compare if you are planning a mixed display.

Which SD Line Should You Buy?

• You want a display piece with MG-level detail: MGSD. Start with Freedom, Aerial or Destiny.
• You want to customize and pose: SDCS plus a Silhouette Booster. The CS frame is what gives these kits their articulation.
• You want a squad of suits from one show, quickly: a BB Senshi set — four kits, one box.
• You like samurai, knights and character designs: Musha Gundam and Legend BB from the BB line, or SDW Heroes.
• You want colour-accurate builds with no painting: Sangoku Soketsuden and MGSD are the two lines where Bandai makes colour separation a headline feature.

Picks by Line

Availability changes quickly; check each product page for current stock.

MGSD

MGSD Freedom Gundam is the kit that launched the line and the clearest showcase of what it does — wing binders with the Reflection Cut clear parts, metallic-gloss frame details, and the full internal frame. MGSD Gundam Aerial brings the Witch from Mercury lead suit to the format, and MGSD Destiny Gundam is the wings-and-weapons showpiece.

SD Cross Silhouette

SDCS Mighty Strike Freedom Gundam and SDCS Gundam Calibarn are the two most recent suits; SDCS F-Kunoichi Kai is the character-style pick. Add a Silhouette Booster to unlock the taller frame and extra hands.

BB Senshi

For a one-box squad, the BB Senshi C.E. Battles of Destiny Set or the Mobile Suit Gundam 0083 Stardust Memory Set. For character kits, BB370 Legend BB Knight Gundam and BB344 Oda Nobunaga Gundam. The full range is in our SD BB collection.

SDW Heroes and Sangoku Soketsuden

SDW Heroes Musha Gundam The 78th and SDW Heroes Onmitsu Gundam Aerial are the line's two headline suits; the Wukong Impulse & Sanzang Strike Freedom set gives you two in one box. From Sangoku Soketsuden, Xun Yu Strike Noir shows off the line's colour separation.

Frequently Asked Questions

What does SD stand for in SD Gundam?

Super Deformed — the chibi art style with an oversized head and compact body. In model kits it describes a proportion, not a scale.

Is MGSD a real Master Grade?

It is Bandai's SD line built with Master Grade technology — internal frame, articulation gimmicks and MG-style materials — but at SD proportions and about 115 mm tall. Bandai brands it as a separate "high-end SD" line rather than as part of the 1/100 MG catalog.

What is the difference between SDCS and SD EX-Standard?

SDCS is built around a swappable frame — SD or the taller Cross Silhouette frame — with expansion sets to keep upgrading it. EX-Standard is the simpler, smaller entry line whose 3 mm joints let you swap weapons between kits.

Are SD Gundam kits good for beginners?

Yes. Short part counts and no scale to worry about make any SD line a low-pressure first build; Sangoku Soketsuden and MGSD need the least colour work afterwards. If you would rather start with a standard-proportion kit, see our Gunpla grade guide.

Do SD kits need painting?

Not to look finished. Newer lines separate colours on the runners — Bandai specifically engineered Sangoku Soketsuden and MGSD for that — while BB Senshi kits include foil stickers for some details. Panel lining is the one upgrade that helps every SD kit.

Do SD kits fit on action bases?

Bandai lists action-base compatibility on many SD releases, including the SDW Heroes line; check the individual product page for the base it recommends.

P-Rex Hobby stocks the SD lines above in Vancouver and ships to the US and Canada. Start from the SD Gundam collection or jump straight to SD BB, SDW Heroes or Sangoku Soketsuden.