RG (real level) real series, the ratio is1:144;

MG (master's degree) research series, the ratio is1:100;

PG (perfect grade) perfect series, the ratio is1:60;

Extended data:

Gunpla-Gundam plastic model has always been an unshakable leading product of Gundam animation peripheral series, and its appearance will show the huge robot in animation in a three-dimensional way.

The differences between HG, RG, MG and PG are as follows:

PG is 1:60, about 30cm, with high precision and flexible movable joints. But the price is expensive, about 1000 RMB, with the most parts, suitable for experts and perfect skeleton structure.

HG is about 1: 144, 13cm, with good appearance and medium movable joints. There are not many parts, small boxes, which are popular and suitable for novices. A few parts of HG have simplified skeletons, and most of them are hollow.

RG is 1: 144, which is equivalent to HG, and the movable joints are better. The price is above RMB 1 10, the parts are medium, the box is small, suitable for veterans, handsome, and the skeleton is relatively complete, but because of the small proportion, the skeleton is relatively fragile. ,

MG is 1: 100, with exquisite appearance and reasonable movable joints. There are generally many parts, and most of the later models have complete internal structure of the skeleton, which is suitable for veterans who often play Gundam.

References:

Baidu Encyclopedia-Gundam Model