Here is the Meltagunner for my Imperial Guard roughrider squadron. The meltagun came off the space wolves upgrade sprue. I used the sergeants right-arm-holding-pistol from the Cadian sprues. Its easy to lose the pistol using a sharp scalpel, but the melta required the but trimming down a bit to get it to fit. This led to me shortening the barrel and removing the fore-sight to create the experimental 'Short-pattern' Cavalry Melta you see here. 
