Gunpla RG kits are made from high-quality plastic with snap-fit construction, often incorporating complex inner frames and multi-layered armor assemblies. Parts are smaller and more numerous than HG kits, which makes the build more challenging but also more rewarding. Articulation is excellent, allowing for expressive poses despite the compact size. Color separation is strong, and decals are commonly included to enhance the realistic look.

Collectors love RG for its visual density and shelf efficiency. These kits take up less space than MG builds while still delivering that premium, mechanical feel. Packaging is compact but packed with parts, and instruction manuals are more detailed to guide builders through the process. At Mythical Mountain, RG Gunpla is perfect for builders who enjoy precision, detail, and the satisfaction of conquering a complex build that punches way above its size.