The only way to be successful in Grand Theft Auto 5 is to have the right weapons and the right attachments. The more missions you play, the more weapons you can unlock. Here is a list of the weapons you can buy and the attachments you can get with them, check it out.
Grand Theft Auto 5 Weapon and Attachments list
You will be alerted via text message when new weapons have become unlocked, remember that just because one character has the weapon not all characters have the weapon. All weapons can be purchased at Ammunation as well as armor and ammo.
Combat Pistol: This is unlocked after a mission with Micheal where he has to face off with some government agents.
Attachments
Extended Clip
Flashlight
Suppressor
Black, Army and LSPD Tint
AP Pistol: Automatic pistol unlocked after you use all three characters for the first time in a mission together.
Attachments
Extended Clip
Flashlight
Suppressor
Black, Army and LSPD Tint
Stungun: Unlocked during the Trevor side mission Border Patrol. (Thanks 2dtommie)
Nightstick: Unlocked late in the game. (Thanks 2dtommie)
Knife: Can be bought as soon as you go to the store.
Grenade: First time I looked I could buy these. Nice and cheap with some big power.
Sticky Bomb: After blowing up some trailers with Trevor these become unlocked in the store.
Jerry Can: Also unlocked during a Trevor mission, after taking out some rivals.
Micro SMG: Acquired during one of the early missions as Franklin.
Attachments
Extended Clip
Flashlight
Scope
Suppressor
Black, Army, LSPD Tint
SMG: Acquired in the same mission as the combat pistol as Micheal.
Attachments
Extended Clip
Flashlight
Scope
Suppressor
Black, Army, LSPD Tint
Saw-Off Shotgun: I don’t remember which mission this is unlocked after but I think it was a Micheal mission.
Attachments
Black, Army, LSPD Tint
Assault Shotgun: Acquired after the Paleto Job.
Assault Rifle: Acquired during the first heist mission.
Attachments
Extended clip
Grip
Flashlight
Scope
Suppressor
Black, Army, LSPD Tint
Carbine Rifle: Acquired during the defense of the lab as Trevor.
Attachments
Extended clip
Grip
Flashlight
Scope
Suppressor
Black, Army, LSPD Tint
Advanced Rifle: acquired during The Big One heist.
Heavy Sniper: Both Micheal and Franklin have missions where they use sniper rifles and I’m not sure which one unlocks this one. This sniper cannot be silenced.
Attachments
Scope
Advanced Scope
Black, Army, LSPS Tint
Grenade Launcher: Unlocked with Trevor during the defense of the lab mission.
Attachments
Grip
Flshlight
Scope
Black, Army, LSPS Tint
RPG: Not sure but Trevor gets it in a 3 way mission.
Minigun: Unlocked after the Paleto Job.
Combat MG: Unlocked after the Paleto Job.
MG: Unlocked after the Paleto Job
The Hammer and 50.cal Pistol: Both of these come with the Special edition of the game. (Thanks 2dtommie)
If I find any special weapons or any new attachments I’ll be sure to add them. Check back soon for more guides. If you want to make millions on the stock market, complete every Heist with ease, or unlock all the random events; check out our Grand Theft Auto V Walkthrough Guide Collection.