Yep it is. Here's some info on it from the builders site:
5 string , 35" scale, 5 piece laminate neck through contruction, hollow chambered body, jumbo frets, 2 way adjustable truss rod, adjustable heavy alloy bridge, passive soapbar humbucking pickup, volume and tone controls, side position markers.
The Mothman Bass is constructed of several different woods to achieve an extremely solid instrument with superior tone qualities and an appearance like no other instrument. The body is built on a foundation of two layers of Black Walnut. On top of the Walnut is a layer of red Bloodwood. The dark layer on the top is Wenge. The neck is a 5 layer laminate of Walnut and Purpleheart. The fingerboard is made from Bocote and nut is made of Ebony. In order to lighten the bass, the body was hollowed out from the back. The "Suit of Armor" plates on the back of the bass conceal the hollow chambers in the body. Even after this lightening process, this bass is still very heavy. All plates are permantly attached except the small elliptical plate for access to the controls.