Counter-Strike: Global Offensive Weapon Skin Database.
Skins are a new feature in Counter-Strike: Global Offensive, introduced in the Arms Deal update. They are weapons with different textures, and are completely cosmetic, holding no gameplay function. However, their different colours and textures can be used as a slight tactical advantage or disadvantage in some circumstances.
To acquire a skin, one must either:
Earn them through random drops by playing in online community and official servers.
"Uncrate" them from opening weapon and promotional crates.
Trading with other players. Buying skins from the Steam Market is considered a trade.
Also, some variants include a StatTrak device, a counter that shows the total amount of kills aquired with the weapon by the current owner.. Holding the [F] key (default) will allow the player to 'inspect' the gun in greater detail and allow you to gain a better view of your StatTrak counter.
Access to the inventory is unavailable when you are alive and after the warm-up in Competitive game modes for tactical imbalance reasons.