New pistons in full and half-teeth forms from MadBull Airsoft which should please Simon Cowell... "New X-Factor Pistons from Madbull feature 7 heat treated steel teeth, three lubricant grooves for maximum lubrication, and a segmented piston guide to reduce friction. They are specially designed for performance AEGs.

For more information, visit: http://www.madbull.com/xfactorpistons.