2 red lilies on white background (representing the lords of Randeck), divided by a green waved bar (representing a local river) and 5 silver balls on a black background (2:1:2, representing affiliation to the Sickingen territory).
Arms were created in the 20th century. Styled after the arms of the neighboring village of Schallodenbach, which it was part of its territory up until the end of the 18th century. The Lords of Randeck held control over the area, when the village was mentioned first in sources. They are represented by the two lilies. 

Colors and symbols were chosen arbitrarily. A green river is unusual, the two lilies are a contraction from the three lilies on the Randeck's coat of arms.
Own work
DrMCf