GC - Good Condition: May show general wear from use. There may be a spot of surface rust.
Light Rust: May show general wear from use. There may be surface rust in several areas.
C G.R.A.D.E - C Grade: May show general wear from use. There may be surface rust in several areas. There may be cosmetic damage to the magazine including, but not limited to: dents, gouges, deeper rust, filed off finger grips, engravings etc. All are functional.