Here we have the Sentinel Beam that appeared in Halo 2 and 3. Though, really, this one takes its inspiration from the H3 version. I decided to model it in approximately the same scale as McFarlane's Halo Reach action figures. It might also fit the Halo 3 figures. I painted it in gray and silver, followed with a blue wash to fill in the glowing recesses. After having one of my Reach figures hold its rear carrying handle, it seems like a bit of a tight squeeze. Halo 3 figures should have less trouble, but both series of figures can hold it. Best of luck and enjoy!