The developers of Fallout 76 have prepared a lot of weapons. You will be able to use pistols, rifles, shotguns, Heavy Weapons, Melee Weapons, Throwing Weapons and Other. Some of Weapons has been already confirmed. Each firearm in Fallout 76 has six attributes: damage, fire rate, reach, accuracy, weight and value. There are a variety of weapons available to find and craft in the post-apocalyptic Appalachian wasteland. Below is a list of weapon statistics for the weapons you may find on your Journey.
Source: N4G PC Fallout 76 Weapons Guide