Head - Tri-Gate/Slayer/Angel Forge
Torso, arms (modified), and vest (modified) - Dollar General Snake Eyes
Upper legs - ROC Neo Viper
Lower legs - Dollar General Storm Shadow
Feet - 2009 5 pack Snake Eyes
Gun - Marauder Gun Runners (modified)

I had made a custom of Snake Eyes version 4 a while back and sold him (and several other customs) when my band got back together so that I could afford some new music gear. Once the Dollar General figures showed up up in my area I decided to make a new one to keep. The armor plates on his arms were replicated from the original Real American hero figure by molding and casting them from green stuff.