grey used on marine armor in ww2

Sorry Andrew, many Amtracs were indeed painted grey.
Haven't seen any pics of Shermans in grey yet though.

Nick, there's a post on Track Link about someone building an Amtrac, in grey by the way, maybe that will help a bit.

http://www.track-link.net/

Guess what! They were green, not grey.

It's only my guess is it might be the same ship color in stock. Calling for Naval officers out there!!