Abstract: An electronic weapon impedes locomotion by a target by conducting a current through an electrode and through the target to produce contractions in skeletal muscles of the target that impede locomotion by the target. The weapon may include a deployment unit to deploy one or more electrodes in trajectories away from the apparatus toward the target. The deployment unit may include covered tubes for the electrodes. Removing the cover may be accomplished with a ram urged against the interior of the cover by an electrode so that the electrode does not touch the cover. The cover may include frangible material with grooves for repeatable material separation. The cover may include fasteners that simplify assembly of the cover onto the body of the deployment unit. The fasteners may include hooks with grooves that disjoin from the cover enabling a more repeatable removal of the cover. Electrode trajectories are more accurate as a result of operation of the rams and the structures of the frangible cover.