Review for LEGO set 7713 Bridge Walker and White Lightning from Brickipedia
“The White Lightning's legs are built in the same way as the other large Exo-Force mechs of 2006. The base color of the structure is dark grey, with red joints. There are white plates with red markings on them. Both hands have six-barreled guns, while the right hand also has... More a disk launcher.”
Full review at brickipedia.fandom.com