Wait...
Master Chief's helmet is green.
This helmet is gray.
Green and gray are two completely different colors.
What the ***?!!
[ed. note: A temper tantrum ensued at this point. We can't divulge anything that happened during this four-hour outburst, but don't be surprised if you see a man garbed in nothing but a Kinectimals plush toy running down a Minnesota highway].
[ed. note 2: We should also point out that the author of this piece has not returned. The notes he left behind say that this LEGO helmet was created by Flickr user Benny Brickster (Ben Caulkins). The frame of the helmet is made entirely out of LEGOs. The visor is actually a modified motorcycle helmet visor. You can see more pictures of this surprisingly accurate helmet in Benny's photo gallery right here.]