HGUniversal Century

ORX-139 Hambrabi (GQ)

A transforming prototype MS that gives an HG the kind of gimmick usually reserved for MG price tags.

MechaGrade Score

3.9/5

Hambrabi (GQ) · 1/144 · 2026

GradeHG

Scale1/144

Released2026

Runnersn/a

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The verdict

This is one of the more interesting HG releases in the GQuuuuuuX line because it does not just pose well, it actually transforms.

Bandai gave this kit a real Mobile Armor conversion for a suit that never even got to show it on screen, and that alone makes it stand out from the usual fixed-pose HG. The Sea Serpent wire weapon and swappable rifle head are the kind of extras that make a $20 kit feel like it earned its price. It is not perfect, but it is one of the more ambitious HG engineering jobs I have looked at this year.

Best for: GQuuuuuuX fans and transformation-gimmick collectors who want more than a static posey HG

The full review

What it is

The Hambrabi (GQ) is Augusta Labs' prototype transformable suit from GQuuuuuuX episode 7, reworked into HG plastic with a full Mobile Suit to Mobile Armor conversion baked into the frame. Popping the skirt armor out, folding the arms back, and locking the legs into the MA silhouette is genuinely satisfying the first time you do it, it is the kind of gimmick I did not expect at this price point. The mono-eye head swivels for a bit of expression, the twin beam rifles mount cleanly on the back for storage, and the slender, sharp UC-prototype silhouette reads exactly like the show design once it is built.

The catch

Transformation gimmicks in HG plastic almost always mean a tradeoff, and this kit is no exception. The joints doing double duty as transform hinges are noticeably looser than a standard HG's, and a couple of poses feel like they are fighting the MA-mode engineering rather than being helped by it. The Sea Serpent's wire part is a nice idea for recreating the anime's electrified restraint attack, but it is fiddly to seat and will not hold a dramatic pose without some encouragement. Being a same-month new release, color separation on some of the smaller Augusta Labs panel details still leans on stickers rather than molded plastic.

Who it's for

Buy this one if you are following GQuuuuuuX and want a kit that does something beyond standing in a cool pose, the transformation and the bonus Sea Serpent gimmick make it worth the build time. It is also a decent pickup for anyone who likes prototype UC-era mobile suit designs even without the anime context. Skip it if you want a rock-solid poser for a photo diorama, the looser transform joints mean it will not lock into an aggressive stance as confidently as a straightforward HG in the same price range.

The build story

What the build is actually like, and the engineering worth knowing about.

Runner layout keeps the transformation hardware separate from the cosmetic armor, so gate cleanup on the outer shell is fairly standard HG work, small nubs, easy to clip and sand. The mechanism pieces that let the legs and arms fold into MA mode are a bit more involved to trim cleanly since they are thinner and load-bearing at the same time.

The standout engineering is the fold sequence itself, skirt armor swings clear, arms rotate back, legs lock forward, and the whole thing reads as a legitimate Mobile Armor silhouette rather than a suit just curled into a ball. Articulation in MS mode is solid for the line, ball-jointed waist, elbows that bend past 90 degrees, and shoulders that swing well past horizontal, which is enough range to hit most of the suit's key poses from its one big fight scene.

Lore & trivia

01The Hambrabi (GQ) is Augusta Labs' prototype and its Mobile Armor transformation was designed for the kit even though the anime never showed that mode on screen.
02It debuted in Mobile Suit Gundam GQuuuuuuX episode 7, 'Machu's Rebellion,' sortied alongside the Psycho Gundam during a staged Clan-Bat that was actually cover for an assassination attempt on Kycilia Zabi.
03In the episode it was shot down by Challia Bull's MAN-03 Kikeroga after Shuji's psycommu resonance with the Red Gundam sent the battle out of control.
04The kit's signature Sea Serpent weapon recreates the show's electrified restraint attack using an included single-core wire part.