Head - Star Viper sanded down with Deep Six face shield
Torso - Road Pig
Arms - 25th Aniv. Bazooka
Waist - Road Pig
Upper legs - New Sculpt Scalpel
lower legs - Astro Viper modified
Vest - Iron Grenadier
Flamethrower and Gatling Gun - Marauders Inc

Long time lurker, first time poster. I have always been a fan of the October Guard and specifically, Horror Show.
This was an odd custom for me since I only work with o-ring figures. There just weren't a lot of parts available in my o-ring fodder bin to create a figure with the size I needed for Horror Show. Using the 25th anniversary arms gave me the length and bulk I needed. The longer new sculpt upper legs added the height.
The hardest part was customizing the head. In the end, I think I captured the look of IDW's Horror Show