Standard sniper barrel

The standard sniper barrel is a weapon mod for the ultracite laser gun in Fallout 76.

Crafting
Weapon modifications will modify an existing weapon, and any modifications previously equipped on the weapon will be destroyed, not unequipped. Loose mods cannot be crafted. For modifications unlocked through scrapping, the corresponding weapon must be scrapped in order to learn how to craft it.

Location
Crafted at a weapons workbench.