Locaps are magazines with a BB capacity under 100, loaded by a spring. Midcaps are like locaps but 100+. Realcaps loads the same amount as real steel. Hicaps are powered by winding a dial and typically loads well over 100+.
If you haven't already, give the FAQ forum a whirl. We prefer to keep ASC more like a library than a helpline, unless you have a question that hasn't already been answered.
"The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."