This article contains all the weapons that can be collected in mass amounts (ie. you can eventually have 501 items) without using any reward points. These are the top random loot drops from fights, robbing, jobs and tournaments.
It does not include weapons which can be won by playing the 'Lucky Stash Jackpot', by using Victory Coins in the marketplace under the fight club, or items bought in the Loyalty Program with Loyalty points as getting 501 of these items may take an unreasonable long time in comparison to other loot drops. Please refer to the Best 501 Weapons Non RP page for a list which includes these items.
It does include Operations since a player may have as many as 10 active operations at any one time which increases the likelihood of Uncommon and Rare loot drops.
For the best of all weapons including limited quantity and Reward Point items, see Best Weapons.