The Grassley House Gundam, the Antidote unit that hunts the Aerial
The CEK-077 Beguir-Pente is the Gundam Burion built for Grassley House in Mobile Suit Gundam The Witch from Mercury. Where the rest of the cast struggle to counter the Aerial's GUND-Bits, the Beguir-Pente fields an Antidote system designed to disable them. Multiple Beguir-Pentes are deployed by Grassley as the antagonist house squadron in Season 1.
The kit gives the Witch from Mercury lineup its dedicated antagonist Gundam slot, sharper and more aggressive than the Aerial line, with engineering that holds the Antidote silhouette intact through dynamic poses.
Build difficulty
Standard HG 1/144 snap-fit. Bandai rate it age 8 and over. Mecha Express tags it both beginner and intermediate: a confident first-timer can manage it, and an intermediate builder will appreciate the Antidote weapon assembly. Expect 2 to 3 hours at a relaxed pace for a clean snap. No glue. No paint required.
Technical highlights
The kit carries the standard Witch from Mercury ball-joint frame with the same anterior and posterior leaning range as the rest of the HGTWFM line. Colour separation handles the dark grey and accent colour scheme without colour-correcting stickers on the main armour. The Antidote system is reproduced as an articulated weapon that mounts on the back, and the kit ships with a beam rifle and beam saber for the standard hero-style loadout.
What makes this kit special
-
The Grassley House Gundam. Dedicated antagonist Gundam for the WFM cast, the suit that hunts the Aerial.
-
Antidote system. The kit's signature weapon, designed in-universe to disable the Aerial's GUND-Bits.
-
Standard WFM articulation. Same ball-joint engineering as the rest of the HGTWFM line.
-
Multiples ready. Grassley fields squads of Beguir-Pentes in the show, so the kit reads well in pairs or trios on a display shelf.
-
Clean snap-build. No gimmicks to fight with, just a satisfying HG build.
What's in the box
- Runners for the CEK-077 Beguir-Pente
- 1 × Beam Rifle
- 1 × Beam Saber
- 1 × Antidote weapon system
- Standard HG hand parts set
- 1 × Sticker sheet
Compatible kits and accessories
This is a mobile suit kit, not an accessory. The Beguir-Pente uses the standard 3 mm back-mount socket, so it pairs with the standard Bandai action base system.
No display base is included with the kit. For dynamic poses, pair the Beguir-Pente with the Bandai Action Base 2, the standard 1/144 display stand. The Witch from Mercury Display Base is the matching series accessory.
Build your Witch from Mercury collection
These in-stock WFM kits at Mecha Express pair well with the Beguir-Pente:
Build specifications
-
Series: Mobile Suit Gundam The Witch from Mercury
-
Grade: HG (High Grade), HGTWFM
-
Scale: 1/144
-
Mobile Suit: CEK-077 Beguir-Pente
-
Manufacturer (in-universe): Burion
-
Faction: Grassley House
-
Manufacturer: Bandai Spirits
-
Barcode (EAN): 4573102650160
-
Skill Level: Mecha Express tags it beginner and intermediate, Bandai rate it age 8 and over
-
Assembly method: Snap-fit
-
Paint required: No
-
Special features: Antidote weapon system, standard WFM articulation with anterior and posterior leaning
Perfect for
- Witch from Mercury collectors building the Grassley House side of the shelf
- Builders who want the antagonist Gundam to balance the Aerial line
- Beginner and intermediate HG builders ready for a clean WFM snap-build
- Squad builders who want multiples for a Grassley House formation
Fast Australian shipping
Dispatched same day from our Brisbane warehouse if ordered before 2pm AEST on weekdays. Free shipping Australia-wide on orders over $199. Genuine Australian stock in hand, not ordered through an overseas proxy. Packed securely in a sturdy outer box with water-soluble cornstarch void fill that dissolves cleanly in the sink.
What to watch for
No significant build weaknesses flagged by independent reviewers. Standard WFM HG quality with the same engineering as the rest of the line.
Builder Tips. A dark grey or black panel line marker reads well against the kit's grey armour. A thin matte top coat takes the moulded shine off and pushes the military silhouette further. If you're building multiple Beguir-Pentes for a Grassley squad, slight variations in panel-line tone make each unit feel like a separate machine.
Build notes
No glue required for the standard build, this is snap-fit. A basic Gunpla tool kit (sharp side cutters or nippers, a hobby knife for clean-up, a panel line marker) is recommended though not essential. Allow 2 to 3 hours total build time at a relaxed pace. Recommended age 8 and over per the Bandai box.
Last updated: 23 June 2026 (AEST)