Every weapon in Blacklight is capable of an immense amount of customization. Everything from the muzzle to the stock of your weapon is modifiable with parts that can be purchased in the Marketplace.

Once a part is unlocked, it can be attached to your weapon. Any number of weapons can use the same component, so only one unlock is required. On the right hand side of the customization screen, the effects on the statistics of the weapon can be seen. Many weapon components vary widely in what they are effective at, so building a gun in a specific way is very easy to accomplish.