this is a polished aluminum rod that replaces the cocking rod on autocockers that uses the MQ valve and does not require the traditional full length cocking rod with the head. This rod is slightly larger around than traditional cocking rod for less back block movement. This rod is not anodized but polished. On those custom jobs this could be anodized to match the marker. If left as is it will oxidize over time and become dull. A simple polishing job will bring it back to its present state.
enjoy,
Kmac