This is a hands-on review of the MG 1/100 HWS Expansion Set for Hi-Nu Gundam Ver.Ka (MG 1/100 Hi-νガンダム Ver.Ka用 HWS拡張セット). It’s a Premium Bandai-exclusive expansion that turns Amuro Ray’s Hi-Nu Gundam into a heavily armored, heavily armed machine. Because it’s only additional armament, build time is about 90 minutes and difficulty is a very approachable one star. That said, the kit only shows its true colors once you add panel lining and the water-slide decals — the heft and presence after finishing were simply stunning. On the flip side, I’ll be honest about the points I only discovered after building: the Hyper Mega Shield is so heavy that the arm joints can’t hold it, and the finish has to match the base kit or the balance falls apart. This is aimed at anyone who already owns the main kit and is deciding whether to add this set.

1. Introduction ― Arming Up the Hi-Nu Gundam with HWS

The Hi-Nu Gundam is Amuro Ray’s ultimate machine, appearing in the novel Mobile Suit Gundam: Char’s Counterattack – Beltorchika’s Children and related works. This product is an HWS (Heavy Weapon System) expansion set that pushes the “MG Hi-Nu Gundam Ver.Ka” even further toward heavy armor and heavy armament. It is a Premium Bandai exclusive. The first thing I felt once it was mounted was that the Hi-Nu Gundam’s silhouette turns into something completely different. To the sleek lines of the original machine, an overwhelming amount of mass is added.

2. Product Information

• Product name: MG 1/100 HWS Expansion Set for Hi-Nu Gundam Ver.Ka
• Series: MG (Master Grade) / 1/100 scale
• Release: September 2014 / suggested retail price 3,630 yen (tax included) ※Premium Bandai exclusive
• Set contents: chest armor unit, front armor unit, leg armor / thruster units, shoulder missile launchers, Hyper Mega Shield, Hyper Mega Rifle, New Hyper Bazooka, shield, beam rifle, “Ver.Ka” water-slide decals
• Note: The MS body itself is NOT included in this product. You need the separately sold “MG 1/100 Hi-Nu Gundam Ver.Ka”

Each armor unit has deployment gimmicks and mechanical internal detail, and the HWS can be reproduced in Form 1 and Form 2 by swapping parts. The included “Ver.Ka” water-slide decals cover several types of markings.

3. Packaging and Kit Contents

The box is a simple single-color package, just as you’d expect from a Premium Bandai exclusive. Inside are the additional armor, the large Hyper Mega Shield and Hyper Mega Rifle and other weapon parts, along with a set of huge water-slide decals. The number of runners itself isn’t large, but each part is big, and once you lay them out you really feel how much mass is being added to the main body.

4. Assembly ― About 90 Minutes, the Building Itself Is Very Easy

Build time is about 90 minutes. Difficulty is one star, and since it’s only additional armament, it’s very easy. There’s no complicated assembly like an internal frame, so the building itself moves along quickly.

In exchange, the points to watch out for are all on the finishing side.

• Match the finish level of the main body: The Hyper Mega Rifle (which attaches to the beam rifle) and the bazooka will look unbalanced unless you match the panel lining and finish level of the “MG Hi-Nu Gundam Ver.Ka” body you’ve already built. This needs attention.
• Apply water-slide decals carefully: The large water-slide decals cover a wide area and there are a lot of them, so work carefully to avoid tears and misalignment.
• Weight your schedule toward finishing: The assembly itself is done in 90 minutes, but the decals and panel lining take longer than that. It’s reassuring to plan for extra time on the finishing side.

In other words, the real event with this kit is not the “assembly” but the “finishing.” Whether or not you go in understanding that makes a big difference to how satisfied you’ll be.

5. Finished Review ― The More You Work On It, the Better It Gets

The biggest highlight is the overwhelming presence and staggering atmosphere you get after applying the decals and panel lining. The heavily armored form is truly striking, and this is a kit that rewards you the more effort you put in.

• Color separation: The parts are cleanly divided by molding color, but panel lining is essential to tighten up the vast armor surfaces.
• Articulation: With the added weight, the holding power of the arms and posing is near its limit, so dynamic poses are a weak point.
• Gimmicks: The kit is packed with heavy-armament gimmicks — mounting additional armor on the chest and legs, double-layering the shield, adding weapons to the rifle, and more.

On the other hand, there are points that honestly bothered me. First, the Hyper Mega Shield is simply too heavy, so the arm joints struggle to hold it, and just getting it to grip is about all you can manage. Second, in a snap-fit state (without decals or panel lining), there are a lot of plain white part surfaces, and it feels a bit underwhelming. To put it another way, if you accept that this is a kit meant to be finished, your expectations won’t be betrayed.

6. Place in the Series ― Compared with Other Kits

This is a dedicated expansion option that evolves the “MG Hi-Nu Gundam Ver.Ka” into its ultimate form. It isn’t self-contained; it shows its true value only when combined with the main body, making it a display-focused kit. Because it isn’t something that “completes on its own” like a normal standalone kit, for anyone who already owns the main body it becomes an option to take their machine up one more level.

7. One Tip for a Cleaner Finish

To draw out this kit’s appeal to the fullest, “panel lining” and applying the “water-slide decals” are a must.

• Panel lining: Indispensable for tightening up the broad armor surfaces. Whether or not you have it clearly changes the sense of density after completion.
• Match the main body: By perfectly matching the finish level of the original body (the depth of the panel lining and the density of the decals), a sense of unity emerges across the whole model and you achieve a dramatic improvement in appearance.

8. What to Check Before Buying

• You separately need the main body, the “MG 1/100 Hi-Nu Gundam Ver.Ka.” This kit alone will not complete.
• The huge Hyper Mega Shield is heavy, so when displaying it you’ll need to adjust the arm’s holding power or provide support.
• Because it only shows its true worth once you apply decals and panel lining, it’s recommended to set aside time for finishing.

9. Good & More

【Good】

• Additional armament only, so assembly is super easy: there’s no complex frame assembly, and it comes together quickly and effortlessly
• Overwhelming atmosphere after panel lining & decals: the more you work on it, the more dramatically the heft and quality increase — the best possible look
• Heavy armor full of romance: you get the sense of ownership from a huge-volume form that completely transforms the Hi-Nu Gundam’s silhouette

【More (points of concern)】

• Weight of the Hyper Mega Shield: extremely heavy, and even just fixing it in the arm to hold it pushes the holding power to the limit
• Underwhelming in a snap-fit state: without decals or panel lining the flat surfaces stand out, and it takes effort to balance it with the main body

10. Score

Overall: ★★★★★

Since it’s an additional-armament-only kit, the assembly itself is very easy and approachable. There are caveats — the Hyper Mega Shield is so heavy that just holding it is about all you can manage, and the bazooka and other weapons will look unbalanced unless you match their panel lining to the original body. Even so, the super-overwhelming atmosphere and heft after applying panel lining and decals are worthy of five stars, making this a thoroughly satisfying expansion set.

11. Conclusion

If you own the main body, this is a masterpiece expansion set worth picking up — you get top-class ownership satisfaction in proportion to the effort you put into finishing it. I especially recommend it to anyone who already has the MG Hi-Nu Gundam Ver.Ka, and to those who want to apply water-slide decals and panel lining and savor the presence of a super heavyweight MS at their own pace. As for display, the best approach is to skillfully adjust the angle so the arm doesn’t sag under the weight of the Hyper Mega Shield, or to make use of a stand, and show off its overwhelming density in a standing pose.