Halo 3 Mongoose Action Figure
From Halopedia, the Halo wiki
This is a miniature version of the Halo 3 vehicle, the Mongoose. It will be about $9.99 or more and will be available in most places. It will be released by McFarlane Toys, along with the Halo 3 Wraith, Halo 3 Scarab, Halo 3 Banshee. No images are available of the Mongoose at this time.
