Head - Beachhead (2002) modified with Sculpey.
Torso - Beachhead (2002)
Arms, waist and legs - Cross Hair (2003)
Hands - Zartan (2002)

Gun - Low Light (2001)

This is my new-sculpt update of Stalker.

You can read his bio and see the original figure here:
http://www.actionforce.org/sasforce/stalker.html