GunPla Grade Scale
Perfect Grade (PG) 1:60
Most expensive and high detailed. Not for the faint hearted. Has LEDs and cool gimmicks. Very limited on selection of kits.
Master Grade (MG) 1:100
Many people's favorite line. Size, articulation, details, and price point. More color accurate. Not much more complicated than a High Grade.
Real Grade (RG) 1:144
Pretty much a MG kit at a HG scale. Has an inner frame like the MG. Many small and tiny parts! Price point is at a lower priced MG.
High Grade (HG) 1:144
Most abundant, most popular, and easiest to assemble. Not much detailed and uses color correcting stickers. Prices range between $10-$40.
Mega Grade (MG) 1:48
Largest size at a HG build scale. Many surface details due to it's larger size.