FPS Freek

FPS Freek increases your accuracy in first-person shooter games like Halo, Gears of War, Call of Duty and others. FPS Freek was designed and tested by professional gamers in tournaments across the Country. The results are clear – FPS Freek enhances aiming precision and increases game performance with a minimal learning curve.

The added analog stick length provides 40% more linear distance from full stop to stop. This gives you more leverage and increased precision without disturbing your natural gaming playing feel.

http://www.kontrolfreek.com/Game-Controller-Accessories/KontrolFreek-FPS-Freek.asp