The standard edition of GTA V includes many different kinds of Weapons (the Special/Collector's Edition versions of the game come with an additional 3 weapons).

Weapon information

All firearms can be bought and customized; only 2 melee weapons can be bought from a store.

You must pass certain missions before purchasing weapons. An in-game email will alert each of your characters when new stock is available to buy. Almost all weapons can be obtained for free as you progress through the game and various side/story missions will give you a weapon and ammo.

• Weapon Customizations
• Armor Types
• Grenade Types
• Parachute Types

Weapons

Below are the various weapon types. Click on one of them to be taken to the page containing all the weapons and stats for each weapon or use the handy sortable table.

Free Assault SMG

If you have linked your copy of GTA V with the Rockstar Social Club, you will receive a totally free Assault SMG with all attachments unlocked for all characters as soon as you enter an Ammu-Nation store.

Additional Throwable

Jerry Cans, while not technically a throwable item, count under this category.

These items are used to pour a stream of gasoline across an area which can be ignited by shooting the stream at any point.

They can be bought at Ammu-Nation after a certain point in the game, are acquired through some story/side missions and can also be found commonly at gas stations around Los Santos.

Unlockable Weapons and Upgrades

• Assault SMG - Link your game with Rockstar Social Club.
• Crowbar - In the Quarry by a porta-potty - head right at the first fork, right up a hill then left into a small dead end. Underwater in a shipwreck to the North West of the map amongst some islands. 
• Baseball Bat #1 - Beside purchaseable property Hookiees, the one with all the porta-potties inside.
• Baseball Bat #2 - Behind the Bayview Lodge, you meet Cletus here to hunt Elk for one of the 'Strangers And Freaks'.
• Baseball Bat #3 - Inside the cannibal camp (the one Trevor can deliver hitchhikers to) atop a rock in front of some log benches. The cannibals are extremely hostile, and character choice does not define how much they want to eat you.
• Baseball Bat #4 - Inside the storeroom of the discount store beside Ammunation on Route 68.
• Golf Club - You can acquire this weapon by asking ever-so-nicely of someone wielding one around a golf course.
• Molotov x5 #1 - 500m south of Hookiees, under the arch of a small bridge. place a marker on the property and drive (so you can check distance from target) south, the arch should be under the first street lights you encounter.
• Molotov x5 #2 - Go south down the road next to the purchasable Los Santos Customs (Sandy Shores) store, and take the second right, ascending a swerving dirt road, at the intersection go straight ahead and you will be in Stoners Cement Works, the Molotovs are beside the parked tractor in the corner of a small sheltered area.