End Gun Trafficking Act of 2008 - Amends the federal criminal code to: (1) prohibit a firearms dealer from selling a handgun to an unlicensed individual if such dealer knows or has reasonable cause to believe that such individual has purchased another handgun within the previous 30 days; (2) prohibit an unlicensed buyer of firearms from purchasing more than one handgun during any 30-day period; (3) increase from one to five years the maximum prison term for firearms dealers who make false statements in their sales records; and (4) require background check records to be retained for not less than 180 days.

Repeals prohibitions on the use of funds for: (1) implementation of the national instant criminal background check system for firearms; and (2) background check systems that do not require and result in the destruction within 24-hours of any identifying information for individuals determined not to be prohibited from possessing or receiving a firearm.