MGUniversal Century

MSZ-006-3B Zeta Gundam III B Type Gray Zeta

The AEUG workhorse gets a Zeon ace's paint job, a bigger cannon, and all the transforming headaches that come with the territory.

MechaGrade Score

3.8/5

Zeta Gundam III B Type Gray Zeta · 1/100 · 2015

GradeMG

Scale1/100

Released2015

Runnersn/a

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The verdict

This is the MG Zeta Gundam Ver 2.0 engineering wearing Shin Matsunaga's colors, and that's both the sell and the catch.

I like this kit a lot when it's standing still and posed, because the new shoulder, side skirt, and rear armor shapes genuinely change the silhouette from the AEUG-white original. What I don't love is inheriting every quirk of a fifteen-year-old transformation frame along with the good parts.

Best for: Zeta Gundam fans and P-Bandai chasers who already know the base 2.0 frame and want the Gray Wolf color scheme with real gimmick weapons

The full review

What it is

This kit takes the well-regarded MG Zeta Gundam Ver 2.0 chassis and re-skins it as Shin Matsunaga's personal machine, the one with the yellow beam-deflection coating he hated and asked to have painted gray instead. Bandai backed that request up with new tooling: reshaped shoulder, front, side, rear, and forearm armor plus the tail stabilizer, and it comes packing the Gray Zeta's signature Beam Cannon (a genuinely huge 210mm barrel) and Mega Gatling instead of the standard loadout. Building it feels like meeting an old friend in a new outfit. The core assembly is familiar MG Zeta territory, but the new armor pieces and the oversized cannon give the finished pose a completely different read than the standard Zeta on a shelf.

The catch

The transformation is the same double-edged sword it's always been on this frame. Getting the wings and shield to lock into wave rider mode is fiddly the first few times, and the waist and legs are built from thin, twisting parts that have to do a lot of work to fold flat, which invites looseness over repeated transforms. Articulation reviewers land around a 7 out of 10, held back by complex hips, restricted shoulder rotation, and legs that can sag under their own weight in aerial poses. You also get a sheet of small yellow foil stickers for detail work that, on an MG at this price, feel like a step down from molded color or a stamped decal.

Who it's for

Grab this one if you already enjoy the MG Zeta Ver 2.0 platform and want the P-Bandai exclusive color scheme with unique gimmick weapons, or if Shin Matsunaga and Gundam Evolve mean something to you specifically. It rewards patience with the transformation sequence and a light touch on the thinner joints. Skip it if this would be your first transforming MG or your first Zeta kit at all, since the sliding mechanisms and indirect assembly steps have tripped up builders on their second MG build, let alone their first. New builders are better served starting with a simpler MG and working up to this one.

The build story

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

Runner cleanup on the new armor parts is standard MG fare, but the transformation-enabling internals mean more indirect assembly steps than a fixed-pose kit. Several steps require connecting sliding PC pieces in a specific order, and it is easy to miss one or install it backward, especially if this is an early MG build. The new shoulder, front, side, and rear armor pieces fit cleanly onto the shared frame, and the tail stabilizer and shield redesign give the wave rider mode a genuinely different profile from the stock Zeta.

Once assembled, the frame holds up well in ground poses, and the oversized Beam Cannon and Mega Gatling give it real screen presence next to a standard Zeta. Articulation sits around 7 out of 10 by community consensus, solid at the knees and elbows but limited at the shoulders and torso, and the leg-to-hip joints can gradually sag in weapon-raised or flight poses. The transformation itself is the headline feature and works once you have done it a few times, but expect the wings and shield to fight you on the first attempt.

Lore & trivia

01The Gray Zeta is piloted by Shin Matsunaga, the former Zeon ace nicknamed 'Gray Wolf,' and first appeared in the OVA Gundam Evolve episode 9
02In-universe, this Zeta uses the same beam-deflection coating as the MSN-00100 Hyaku Shiki, which gives it a yellow tint that Matsunaga reportedly disliked, requesting the gray scheme seen on the kit instead
03The cockpit is designed with a split-panel screen layout reminiscent of older Zeon mobile suits like the Zaku, rather than the panoramic monitors typical of later Gundam-type units
04This is a P-Bandai exclusive release built on the MG Zeta Gundam Ver 2.0 base kit, first released in 2015 and later reissued