Build the HG Gundam Throne Zwei: Step-by-Step Guide

By Welcome to The Gundam Galaxy | Published: 2026-10-26

Category: How-to Guides

Learn how to assemble the HG Gundam Throne Zwei kit with clear, actionable steps. Avoid common mistakes like loose joints and nub marks for a clean finish.

Quick Answer

Build the HG Gundam Throne Zwei by following a logical assembly order: start with the torso and head, then arms, legs, and finally the large GN Launcher. Focus on cleaning nub marks and test-fitting joints before final assembly.

Why the Build Order Matters

The Throne Zwei's asymmetrical design and large backpack-mounted GN Launcher can make the kit top-heavy if you assemble the arms or legs first. Starting with the torso lets you build the core structure before adding weight, which reduces stress on the polycaps.

You'll also avoid the frustration of trying to fit a fully assembled arm into a tight shoulder socket — a common issue with HG kits that have complex shoulder joints.

Tools You'll Need (and What to Skip)

A basic hobby nipper and a fine file or sanding stick are enough for clean cuts. Avoid using a craft knife for gate removal unless you're experienced — it's easy to gouge the plastic. For panel lining, a fine-tipped Gundam Marker works well on the Throne Zwei's dark gray and black parts.

You don't need glue or paint for this kit. The HG grade is designed for snap-fit assembly, and the color separation is good enough for a display-ready model straight out of the box.

Assembly Steps

Step 1: Prepare the Runners: Cut each part from the runner using a hobby nipper, leaving a small nub. Then trim the nub flush with a file or sanding stick. For darker parts like the GN Launcher, sand carefully to avoid whitening the plastic. Common mistake: cutting too close to the part can stress the plastic and leave a white stress mark. Always cut a few millimeters away and trim down.
Step 2: Build the Torso and Head: Snap together the chest, waist, and back pack. Attach the head unit, ensuring the clear yellow camera piece sits flush. Test-fit the polycaps in the chest — they should move freely but not fall out. Check that the polycap for the GN Launcher mount is oriented correctly before pressing it in; it's easy to install it backward.
Step 3: Assemble the Arms: Build each arm from the shoulder down to the hand. The shoulder joints use a ball-and-socket connection; push firmly until you hear a click. Attach the arms to the torso. If the shoulder joint feels loose, apply a tiny drop of clear nail polish to the ball and let it dry before reinserting. This tightens the fit without damaging the plastic.
Step 4: Build the Legs and Skirt Armor: Assemble each leg from the hip joint down to the foot. Attach the front and rear skirt armor pieces. The legs attach to the waist via a peg; align the peg with the slot and press evenly. The hip joints on this kit can be tight. If you feel resistance, stop and check alignment — forcing them can crack the polycap.
Step 5: Build and Attach the GN Launcher: Assemble the large GN Launcher from the barrel, grip, and mounting bracket. Slide the bracket into the backpack slot, then attach the launcher. The grip should rotate freely. The launcher is heavy. If the backpack slot feels loose, use a small piece of tape on the bracket to create a snug fit. This prevents the launcher from drooping.
Step 6: Panel Lining and Final Assembly: Use a fine-tipped Gundam Marker to trace the panel lines on the torso, arms, and GN Launcher. Wipe away excess ink with a cotton swab or eraser. Then attach all remaining parts (shield, beam saber, etc.) and pose your kit. Wait until all parts are assembled before panel lining — you'll see the full line layout and avoid smudging adjacent pieces.

About This Kit

Gundam Throne Zwei HG: This HG scale model kit of the Gundam Throne Zwei features the iconic design and color scheme of the Throne Zwei unit. You get a faithful recreation of the mobile suit's distinctive look without needing paint, but be prepared to clean up visible nub marks on darker plastic pieces.
Gundam Throne Zwei HG