That’s the Tactical Assault Long Range Camera Stock (TALCS) with a Nikon D200 body and a Nikkor 80-200mm telephoto lens.

Features:
• Fully functional “trigger” operates the shutter and auto focus
• Two Standard m1913 rail sections
• Optional Left Hand Panning Section (Tested)
• Optional Auto-Focus assist Light (Not Tested)
• Two Sling attachments for optional single point sling
• One Sling Stud for Harris Bipod
• One Hook and Loop Fastener Attachment Section

More pictures after the break.

The videos are kinda boring:

[via 230Grain | Like Cool]