Necro-Mechnos. Punk Reactor.

The necro mechnos , are filthy and crude. Flesh and machine fused in a corrosive marriage. They die if they run out of batteries but not if shoot through the head. Best known for their smell of rot.

The majority of bits is from games workshop. The head is from an old collection of skull box that GW once had (maybe still have). Legs and claw arm is from Necrons and the main body is a adeptus mechanicus tank crew.