RAP4 .40 caliber paintball is the best in the market today. RAP4 paintballs are made in the U.S.A. with the highest quality and performance. This is the best there is, you cannot find better .40 caliber paintball anywhere else.
RAP4 .40 caliber paintball works with RAP4 and RAP5
Don't forget to pick up a package of plastic (biodegradable) shells for your RAP4 and RAP5 they play an important part of the operation of the marker.