At the beginning of the game you can only install one per weapon, but advancing your weapons technology will open up a second slot, while the third slot depends on which version of the game you're playing in the base game, you can roll a Continent Bonus that adds a Weapon Attachment slot to all your weapons, while in War of the Chosen you instead add the additional slot via Breakthroughs, with each Breakthrough applying to a specific weapon class. but there's some differences.įirst of all, weapons can have up to three Weapon Attachments.
Weapon Attachments are like PCSes, but for (primary) weapons you primarily loot them from the battlefield, they come in Basic/Advanced/Superior tiers, they can be bought at the Black Market, by default if you replace an attachment you lose the previous one.
