A paintball loader which feeds paintballs to a paintball marker has a rotor body and a drive motor for rotating the rotor body. The paintball loader can include a latch member for selectively securing an upper shell member to a lower shell member. The paintball loader can include a ramp member inside the upper and lower shell members. The ramp member moves between a first or flattened position and a second or raised position to facilitate operation of the loader. The components of the loader are designed so that assembly/disassembly is performed with few, if any, tools to facilitate cleaning and/or maintenance.