RE100Universal Century

MSA-005K Guncannon Detector (Z-MSV Ver.)

A one-episode artillery suit that got a genuinely thoughtful kit instead of an afterthought.

MechaGrade Score

3.8/5

Guncannon Detector (Z-MSV Ver.) · 1/100 · 2018

GradeRE100

Scale1/100

Released2018

Runnersn/a

Check price on Amazon

Affiliate link. We may earn a commission at no extra cost to you.As an Amazon Associate we earn from qualifying purchases.

The verdict

This is one of the better RE/100 releases I have put hands on, and it rewards anyone willing to seek out a Premium Bandai suit most people have never heard of.

The Guncannon Detector only shows up for a single brutal stretch of Unicorn episode 4, but Bandai treated it like it mattered, with newly molded parts on the head, legs, waist, and a fresh gun sculpt for this Z-MSV colorway. It builds clean, poses well for a suit built around a stubby cannon-mode gimmick, and the red plastic plus waterslide decals make it look like a proper release rather than a reissue with a new sticker sheet.

Best for: UC completionists and Zeon-remnant-era fans who want a lesser-known artillery suit that actually holds its poses

The full review

What it is

The Guncannon Detector is a Karaba and Anaheim Electronics artillery suit built on the MSA-005 Methuss frame, and this Z-MSV version reworks it in aggressive red with new head, leg, and waist sculpts plus a redesigned rifle. Twelve runners is a modest count for the scale, but the RE/100 line's part-cleverness is on full display here. The head swivels on a double ball joint, the arms raise to full horizontal, elbows bend past 90 degrees, and the double-jointed knees give it a deeper crouch than a lot of 1/100 suits from this era manage. It converts into an artillery mode by folding the front waist armor and rearranging the legs, which is exactly the kind of screen-accurate gimmick that makes an obscure suit worth building.

The catch

This was a Bandai Hobby Online Shop / Premium Bandai exclusive, so it was never a rack kit and secondary market pricing runs well above what a comparable mainline release costs. Builders have flagged visible seams on the forearms, which is a known soft spot on this kit, and the RE/100 line in general has an inconsistent track record for plastic softness and joint tension from release to release. It leans on waterslide decals rather than a big sticker sheet, which looks better on the shelf but means an extra step with setting solution and patience most stickers do not demand.

Who it's for

I would point this at UC fans who already know the Torrington Base fight from episode 4 and want the suit that made it memorable, plus anyone who collects the weirder corners of the Z-MSV and Gundam Unicorn side-suit catalog. It is not a great first RE/100 kit if snap-tight joints matter to you more than obscure suit selection, and it is not for someone who just wants an easy eBay grab, since exclusive pricing and availability are real friction. For the target audience though, the articulation and the artillery-mode gimmick make it worth the hunt.

The build story

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

The build goes together cleanly across all twelve runners with no fit problems reported and good surface detail for the scale. The forearms are the one spot builders consistently call out for seam lines, so plan gate placement or a little post-build cleanup there if a seam-free finish matters to you. Everything else assembles the way RE/100 kits are known for: intricate, pre-detailed armor and backpack pieces that make the finished suit look more complex than the part count suggests.

The articulation is the real story. A double-ball-joint neck, arms that raise to full horizontal, elbows that bend past 90 degrees, and double-jointed knees add up to a suit that can hold dynamic firing stances instead of the stiff artillery-suit poses you'd expect. The waist and leg gimmick that folds down into artillery mode is a nice touch of fan service for anyone who remembers the fight it comes from, and the loadout of a beam rifle, beam gun, twin beam cannons, and the 170mm cannon gun gives it plenty to hold in both modes.

Lore & trivia

01The Guncannon Detector is built on the movable frame of the MSA-005 Methuss and takes visual cues from the original RX-77 Guncannon, despite having no actual lineage to it
02The suit's name comes from Karaba leader Hayato Kobayashi, who piloted a Guncannon during the One Year War and named this later design after it out of personal history rather than mechanical relation
03In Mobile Suit Gundam Unicorn episode 4, 'At the Bottom of the Gravity Well,' two Guncannon Detectors defended Torrington Base against a Zeon remnant assault and disabled multiple enemy MS carrier units before the fight was over
04This Z-MSV (Mobile Suit Variation) version was a Bandai Hobby Online Shop / Premium Bandai exclusive released in 2018, distinguishing it from any standard retail Guncannon Detector release