HGUniversal Century

RX-160G Byarlant Isolde

A P-Bandai deep cut that dresses up an old HGUC frame with a sharper head and a better story than most people expect.

MechaGrade Score

3.5/5

Byarlant Isolde · 1/144 · 2017

GradeHG

Scale1/144

Released2017

Runnersn/a

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The verdict

This kit rewards people who already like the Byarlant shape and want the more interesting version of it.

It is built on the same HGUC engineering as the 2012-era Byarlant Custom, so do not expect modern joint tech, but the twin-eye head, the back-mounted propellant tanks, and the reworked arm thrusters genuinely change the silhouette. It is a Premium Bandai release, so it costs more and sells out faster than a standard HGUC, which shapes who this is really for.

Best for: UC completionists and Byarlant fans who want the Twilight Axis variant and don't mind older HG engineering for a kit with real presence

The full review

What it is

The Byarlant Isolde takes the familiar RX-160 Byarlant body and grafts on a new twin-eye head, a pair of back-mounted propellant tank and thruster units, redesigned arm-side thrusters, and extra armor and vents on the backs of the legs. Building it feels like assembling a well-worn HGUC design, because most of the frame is shared with the Byarlant Custom runners, but the new pieces on top actually earn their keep. The head swap alone makes it read as a different unit on the shelf, not just a recolor. I came away liking it more once it was standing on the shelf than I expected while I was clipping parts off the sprue.

The catch

This is HGUC-era engineering from around 2012, not current HG tooling, so the joints are simpler and the ankle and hip armor is bulky enough that you have to nudge it out of the way before deep poses or you'll stress the plastic. It leans on shared Byarlant Custom runners, so some of what you're paying for is parts you've seen before if you own that kit. It's also a Premium Bandai exclusive, which means a higher price than a standard HGUC and no guarantee of restocks, so tracking down a copy at a fair price takes more effort than picking a normal HG off a shelf.

Who it's for

Buy this if you already collect Universal Century side-story units or specifically want the Byarlant lineage with its best head sculpt. The propellant tanks and twin-eye face make it a more distinctive display piece than the vanilla Byarlant, and the lore hook (it's paired with the Gundam AN-01 Tristan, both named for the Tristan and Isolde legend) is a fun bit of trivia to hang on the shelf tag. Skip it if you want cutting-edge articulation or a first Gunpla purchase. Newer HG or RG kits will pose easier and cost less to find. This one is for people who know what they're buying into and want the specific variant, not the easiest kit in the store.

The build story

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

Assembly runs through familiar HGUC territory since a lot of the frame comes off Byarlant Custom-shared runners, so gate placement and cleanup feel like an older kit rather than something tooled last year. Nub marks land in visible spots on some of the leg and arm shells the way they do on other kits from that generation, so a hobby knife and a little sanding go a long way if you want clean panel lines.

The additions are where the kit earns its keep: the new head unit with the twin-eye camera drops in cleanly and immediately reads as a different mobile suit, and the back-mounted propellant tank and thruster assembly gives the silhouette real bulk and presence without feeling like dead weight. Elbows bend to roughly 90 degrees and knees to roughly 120 degrees, which was solid for its era and still holds a decent action pose once you work around the armor plates at the hips and ankles.

Lore & trivia

01The Byarlant Isolde belonged to Birnam, a private army financed by Scharnhorst Buffo of the Buffo Concern, and appears in the Mobile Suit Gundam Twilight Axis novel and ONA set in U.C. 0096.
02It is piloted by Walter Fermo and is most often seen alongside its partner unit, the RX-78AN-01 Gundam AN-01 Tristan.
03The Isolde and Tristan names come from the 12th-century Anglo-Norman legend of Tristan and Iseult, a deliberate pairing echoed in the two units' fictional partnership.
04The kit shares a large portion of its runners with the earlier HGUC RX-160S Byarlant Custom, with the Isolde-specific head, back unit, and leg armor added as new tooling.