The newer ones like the Hog and Par Mk3 come in rear and front wired versions so does the masada clone the Ape. Ics guns are good because they are reliable and well built. The newer models have better quality gears and pistons than the older versions, which weren't too bad to start with. The Ape is a very nice looking gun aswell. The older CXP's were M4 and 416 clones.