BATTLEGROUNDS has special weapon skin crates that can be acquired to make your weapon look different from the average player.
Weapon skins were introduced during the anniversary of BATTLEGROUNDS. These weapon skins in PUBG are cosmetic only.
Just like clothing crates, weapon skin crates have the standard 2 versions...
- Purchase with BP with a random chance (the Triumph Crate is at a 20% chance) at getting a weapon crate out of several other crates with no key needed.
- Purchase with BP and it can be unlocked with a key.
Weekly crates give you duplicates, but you can either exchange duplicates for BP or sell them on the Steam Community Market. These weapon skins are entirely cosmetic, holding no gameplay function. Unlike some games like Call of Duty weapon skins, the better your skin, the better weapon statistics your weapon has. BATTLEGROUNDS isn't this, it's not pay 2 win.
(from common to rarest)
- Grey (Classic)
- Green (Special)
- Blue (Rare)
- Violet (Elite)
- Purple (Epic)
- Red (Legendary)
- Gold (Ultimate)
- Q: Can we make our own weapon skins like CS:GO and open the market so modders can sell them?
A: We would love to do that of course, but these bring their own challenges about troll skins and stuff like that. So for that, we love the way Valve and Dota do with their skin system. So mabye someday but not right now. 
- Q: Where can I see individual weapon skins?
A: You can head to variants.