HGBuild Divers

Saturnix Weapons

A giant drill and a pair of vise pliers that turn Hiroto's Core Gundam II into a demolition machine.

MechaGrade Score

3.6/5

Saturnix Weapons · 1/144 · 2020

GradeHG

Scale1/144

Released2020

Runnersn/a

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The verdict

I'll say it upfront, this is an accessory kit and it plays like one, but it's a genuinely satisfying accessory kit.

You're not getting a mobile suit here, you're getting the Breaker Drill and Vise Pliers that dock onto the Saturnix Unit and Core Gundam II to build out Hiroto's melee monster. On its own terms it delivers real chunky, tool-inspired hardware with a spinning drill gimmick that actually works. Just know what you're buying before you check out.

Best for: Build Divers fans who already own the Core Gundam II and Saturnix Unit and want the full heavy-machinery loadout

The full review

What it is

This is the weapons half of the Saturnix expansion for Hiroto Kuga's Core Gundam II, sold separately from the Saturnix Unit armor. You get a claw unit and a drill unit plus the connecting joints, all built around a construction-equipment aesthetic instead of the usual sword-and-rifle Gunpla loadout. The Breaker Drill spins when you rotate a rear dial, which is a small thing but it's the kind of tactile gimmick that makes plastic feel like a toy again, and the Vise Pliers open and close with real clamping force. Snapping it onto the Core Gundam II's arms and shoulders and watching a mid-size HG suddenly look like it's carrying mining equipment is a genuinely fun payoff.

The catch

The obvious catch is that this kit does nothing by itself. You need the HG Core Gundam II and the HGBD:R Saturnix Unit to actually build the Saturnix Gundam, so the real cost of "getting this kit" is three separate boxes, not one. Color separation on the weapons themselves leans on molded plastic well but there's some visible seam line on the drill housing that a panel line pen fixes fast. The connection joints are also fairly specific in how they peg together, so first-time assembly benefits from checking the instructions twice before you force anything.

Who it's for

If you already have the Core Gundam II and Saturnix Unit sitting on your shelf, this is the easy final purchase that completes the look, and I'd tell you to grab it without hesitation. If you don't own those other two kits, skip this one for now or budget for the full three-kit combo up front, because on its own this is a fistful of drill parts with nowhere to attach. It's also a fun pickup for anyone who likes weapon-focused HG expansion kits in general, the tool-and-machinery design language is a nice change from laser rifles.

The build story

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

Runners are small and weapon-focused, so gate placement is generally forgiving, nub marks land in spots the drill housing and pincer arms mostly hide once assembled. No glue is needed and color separation on the molded plastic covers most of the tool-yellow and gunmetal accents without paint, though the drill barrel does show a seam that's worth cleaning up if you want a display-ready finish.

The standout piece of engineering here is the drill's rotation mechanism, a simple rear-mounted dial that spins the bit convincingly for a sub-1000 yen accessory set. The Vise Pliers have working clamp articulation rather than being locked in one pose, and the connection joints are built to let both weapons mount in multiple positions across the Core Gundam II's frame. For a parts-only expansion the part count feels appropriately generous, you're not paying full price for filler.

Lore & trivia

01The Saturnix Gundam is the melee combat form of Hiroto Kuga's PFF-X7II Core Gundam II, created by docking the Saturn Armor through the in-universe PLANETS System.
02Its equipment, including the Breaker Drill and Vise Pliers in this kit, is deliberately designed around a construction and heavy-machinery motif rather than traditional combat weaponry.
03The Saturnix Unit and Saturnix Weapons kits can also combine with each other to form an alternate weapon configuration called the Meganic Driver.
04Saturnix Gundam debuted in Gundam Build Divers Re:RISE, where it was used in combat against a Universal Century-style opponent despite being designed to counter Gundam Frame units.