A profile insert for a meter roller of an agricultural metering system includes a flute and a recess positioned adjacent to one another along a circumferential axis of the profile insert. The flute and the recess are configured to meter flowable particulate material from a storage tank to a material distribution system via rotation of the profile insert. The profile insert also includes at least one locking element configured to substantially block circumferential rotation of the profile insert relative to a spindle. In addition, the profile insert is configured to extend about only a portion of a circumference of the spindle.