GamersFirst has an APB Reloaded contest for you. The 1.5.2 patch is coming soon, and as a result the servers are in need of stress testing. If you can manage to kill 100 unique players between July 8th and July 11th, you'll be the proud new owner of a (virtual) Joker RFP-9 handgun.
Notice we said unique players, so banish all thoughts of grabbing a buddy and scoring yourselves a pair of pistols by killing one another over and over.
GamersFirst is also giving away a cowboy hat to the first 100 folks who manage to kill 100 unique players, so log in to San Paro and get busy on your murdering rampage before it's too late!