The new Drift Pump kit is designed to be the ultimate pump kit. The kit comes with a Fully Fluted Stainless Steel Pump Guide - the flutes allow dirt and paint to be pushed out of the system to keep your pump stroke smooth even during the worst conditions. The Pump has a quick strip - easily remove one screw to remove the pump assembly for easy cleaning. Ultra low friction - replaceable teflon infused delrin bushings for the ultimate in pump stroke. It has a stainless steel pump arm - Aluminum is the wrong material for pump arms, that's why all of our kits ONLY use stainless steel. An autotrigger pin is included - as it should be.