If you purchased the Max Payne 3 Rockstar Pass you'll receive the pack free of charge
Local Justice Pack, the first downloadable content (DLC) for Max Payne 3, is now available for PlayStation 3 and Xbox 360, Rockstar Games announced - the PC version will launch on July 17th. This pack includes three new maps for Max Payne 3 multiplayer based on areas from the game's final chapters (The Imperial Palace, Departure Lounge and 55th Battalion HQ); the new M4 assault rifle and attachments; the Light Fingers item for faster looting; a new São Paulo Police multiplayer faction; and associated new Achievements, Trophies or Social Club accomplishments.
The Local Justice Pack will be available for one week only at a discounted price of 480 Microsoft Points (Xbox LIVE) or $5.99 on PSN. The pack will then return to its normal price of 640 Microsoft Points (Xbox LIVE) or $7.99 on PSN. Players who purchased the Max Payne 3 Rockstar Pass will receive the pack free of charge. The Rockstar Pass is currently available for 2400 Microsoft Points (Xbox LIVE) or $29.99 on PSN.