HG 1/144 GM Intercept Custom: Building the Fellow Booster
By Fuwa Fuwa Land-Fuwa Fuwa Land | Published: 2026-11-04
Category: How-to Guides
A step-by-step guide to building the Premium Bandai HG 1/144 GM Intercept Custom and attaching the Fellow Booster cleanly, with checkpoints to avoid common mistakes.
Quick answer
Build the GM Intercept Custom body first, then assemble the Fellow Booster as a separate unit, test-fit the attachment points before final gluing or snapping, and only pose the combined model after checking balance and clearance.
Why the Fellow Booster changes your build order
The Fellow Booster is not a simple accessory; it adds bulk and changes the model’s center of gravity. If you attach it before the body is fully built, you risk stressing joints or missing alignment issues. Build the GM Intercept Custom torso and legs first, then treat the booster as its own sub-assembly. This also makes it easier to paint or detail the booster separately if you choose.
Because this is a Premium Bandai exclusive with a 6–8 week lead time, replacement parts are not as quick to source as standard retail kits. That makes careful dry-fitting and gentle handling especially important during assembly.
When to skip the booster (and when not to)
If you plan to display the GM Intercept Custom in a tight shelf space or prefer a cleaner silhouette, you can leave the Fellow Booster off. The kit still builds as a complete GM Intercept Custom without it. However, if you want the full equipment loadout shown in the product name, plan for extra display depth and a stand that can handle the offset weight. The booster’s exact dimensions and attachment method are not listed in the catalog, so test-fit before committing to a permanent pose.
Step-by-step build and attachment process
- Prepare and inventory runners: Lay out all runners and check the manual for the Fellow Booster parts. Separate booster-specific parts from the main body parts before cutting anything. Common mistake: cutting booster parts early and mixing them with body parts, which slows assembly and increases the risk of losing small pieces. Use small labeled bags or a parts tray to keep booster parts separate until the body is built.
- Assemble the GM Intercept Custom body: Build the torso, head, arms, and legs following the manual, but leave the backpack or rear attachment area accessible. Do not snap the backpack on permanently yet. Checkpoint: test the range of motion in the shoulders and hips before adding any booster weight. If a joint feels tight, gently sand the peg slightly rather than forcing it.
- Build the Fellow Booster sub-assembly: Assemble the booster as a separate unit. Dry-fit any connection points to the back of the GM Intercept Custom before final snapping. Common mistake: gluing or forcing the booster connection before checking alignment, which can crack the attachment peg. If the booster does not seat flush, inspect for a misaligned part rather than applying more pressure.
- Test-fit the attachment and check balance: Attach the booster temporarily and stand the model on a flat surface. Check whether it leans backward or forward. If it does, adjust the pose of the legs or plan to use a display stand. Checkpoint: the model should stand without support for at least a few seconds before you finalize the pose. A stand is recommended if the booster makes the model back-heavy; do not rely on joint friction alone.
- Pose with clearance in mind: When posing, move the arms and legs slowly and watch for the booster colliding with the backpack or shoulders. Common mistake: rotating the torso too far and popping off the booster connection. Keep poses within the clearance you tested. Take a photo of your final pose before moving the model to a display shelf, so you can replicate it later.
Product facts
- Premium Bandai HG 1/144 RGM-79KC GM Intercept Custom (Fellow Booster Equipped): Premium Bandai exclusive release from the Universal Century timeline, 1/144 scale, includes Fellow Booster equipment. The exclusive status means you should confirm part fit carefully during assembly, as replacements may take longer than standard retail kits.

Premium Bandai HG 1/144 RGM-79KC GM Intercept Custom (Fellow Booster Equipped)
