You will receive 12 of every sniper rifle / semi auto rifle and bolt action rifle delievered in-game to any community of your choice. You'll receive 576 weapons total. Each gun will have 999 ammo, reload to 999, max stats and instant reload. 
 
With trunk delivery straight to your locker you will receive all of your items in minutes. 
 
You will need to complete bounties for some of these items before you can use them.