When i first got this gun i thought i was boned, A plastic gearbox vs metal gearboxes, i was hoping that id live just on pure skill....but i didn't have to worry, it kept up just fine with the metal gearboxes, range is decent, and fps is not bad, but what gets me is the ROF, very fast, CQB heaven, and don't worry about it costing ammo money, this thing works great and accurately with .12g. This is the best plastic gearbox you can get, i use it during the winter when my metal gearbox can't take the cold after too long, Accesories are cheap, but some will work for you. Believe it or not i got a kill with the M203, face to face, only once, never tried my luck again