HGBuild Fighters

M91 Gundam M91

A knight's lance grafted onto an F91 frame, and somehow it all makes sense.

MechaGrade Score

3.7/5

Gundam M91 · 1/144 · 2018

GradeHG

Scale1/144

Released2018

Runnersn/a

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The verdict

This is a genuinely fun, oddball HG that turns a fan-favorite silhouette into something new without losing what made it good.

Julian Mackenzie's design pedigree (an F91 Imagine pushed further) comes through in the finished kit, and the lance-and-VSBR loadout gives you more to do with your hands than most 1/144 kits this size. The catch is that it's a P-Bandai exclusive, so the price and the hunt to find one both run higher than a standard HG. If you can track it down at a fair price, it's worth the trouble.

Best for: F91 fans and HGBF collectors who want a rarer variant with real weapon variety, not just a repaint

The full review

What it is

The M91 is built on an F91-derived frame, and you can feel that lineage the moment you start assembling it: the proportions are compact and sporty, the head sculpt keeps that sharp F91 face with the signature V-fin blown out bigger and bolder, and the overall silhouette reads as its own suit rather than a reskin. What sold me was the loadout. You get the M Lance, a roughly 15cm melee weapon with a rotating tip, plus four VSBR beam rifles instead of the usual two, two of which mount on the back and slide forward into a full burst pose. Building it, the parts breakdown felt purposeful rather than padded, everything on the runners has a reason to be there, and clicking the frame together felt more like assembling a small weapons platform than a generic grunt suit.

The catch

Being a Premium Bandai exclusive from 2018 is the real catch here. It never got a general retail release, so pricing runs above a standard HG and you're often buying secondary market or import, with all the shipping and markup that implies. Like most HGs of its era, color separation leans on molded plastic where it can but still calls on a sticker sheet for some of the finer V-fin and chest details, so don't expect MG-level painted precision out of the box. The four-VSBR loadout also means more small parts to keep track of during the build and more accessories to store on the shelf once it's done, which is a real consideration if you're tight on display space.

Who it's for

This one is for people who already like the F91 lineage and want a variant with a stronger weapons complement and a bit of rarity to it, not someone looking for their first kit or their cheapest kit. If you're new to Gunpla, the harder-to-find P-Bandai status and secondary market pricing make this a rough entry point, go grab a standard retail HG first. But if you're an HGBF completionist, an F91 fan filling out variants, or you just want a small kit that can hold a genuinely aggressive full-burst pose with four beam rifles blazing, this is a satisfying pickup once you find one at a reasonable price.

The build story

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

The build moves at a typical HG pace, snap-fit assembly with the usual light nub cleanup, and nothing about the frame felt fussier than a standard 2018-era High Grade. The part count runs a bit higher than average for the grade because of the second weapon set, but everything mates together cleanly and the F91-style joints hold their shape well as you go.

The standout here is the weapon engineering. The M Lance's rotating tip and waist-mount option give you a real melee pose beyond just holding a stick, and the sliding rear VSBR mount that opens into a four-barrel full burst stance is the kind of playable gimmick that makes an HG worth building rather than just displaying static. Articulation follows the F91 lineage, so you get good hip and shoulder range for a small-scale kit, with the V-fin head sculpt and lance in hand carrying most of the shelf presence.

Lore & trivia

01The M91 first appeared in Gundam Build Fighters Amazing Ready, piloted by Julian Mackenzie, England's representative at the 8th Gunpla Battle World Championship.
02The 'M' in M91 comes from Mackenzie's own surname, and the design is built as an enhanced version of the Gundam F91 Imagine he had piloted previously.
03The M Lance, the kit's signature melee weapon, is described in-universe as combining parts from an F91 beam launcher with a family heirloom knight's lance, complete with a tip that can generate a weakening electric shock and rotate for extra penetration.
04This HGBF release increased the VSBR count from the standard two to four, with the rear pair using a slide-forward mechanism to open into a full burst firing mode.