Head: Repeater
Torso: Action Soldier (keychain)
Arms: Rock'n Roll v2
Waist & Legs: VvV figure (Duke I think)

When I was reading IDW's G.I.Joe #18, this certain character caught my attention because he stood tall among his peers (literally), and I knew I wanted my own HAMMERHEAD figure.

Taking cue from my Big Lob custom figure (also found here at joecustoms), I used a spare VvV pair of legs to make this custom stand taller than the regular ARAH joes - see secondary photo for height differential.

I used to call this character "Hammerdown", as it was the name also used in the said comic, until I learned that "Hammerhead" was the accepted norm for the character.