So I killed a legendary Gunner and got very cool weapon from him. It is a Scattered Automatic Laser Musket. It is OP to say the least. Instead of cranking it you just hold the trigger and your character just constantly cranks it while firing... Only problem is that it cannot be modified. It doesn't show up in the weapon bench so I cannot even rename it... Any particular reason for this?

Asked same Q yesterday and far as i can tell - either bugged or by design, auto musket cant be seen or modified at bench.

They drop with different affixes. Mine was a short auto musket, so the various parts seem random. Unfortunately its not that OP since the fire rate is so low and you can mod it beyond single crank fire. Now if you could auto 6 crank fire. Now that would be pretty powerful.

As single crank auto fire, it has less dps than semi automatic combat rifle and far less than full auto combat rifle.

Can't speak for anyone else, but my Automatic Laser Musket is moddable on the workbench until I equip it. Then it disappears from the workbench list until I drop it and pick it up.

The Automatic Laser Musket has a decent fire rate since it loads 20 ammo at once and each crank fires one shot. It is much faster than the standard Laser Musket since you crank it 1 to 6 times for each shot.

Unlike every other Legendary weapon, it has a unique mod instead of a Legendary bonus. So it is impossible to get an Automatic Six-Crank Laser Musket. Choosing a different crank other than automatic converts the weapon back to a regular Laser Musket and removes the Automatic mod from your inventory.

that is very helpful info

Are laser muskets in the normal legendary loot table? Dying to know if I can get the "second bullet" effect on a 6 crank musket, making it 12 shots at once.

Haven't seen any other type of Legendary Laser Musket. You can use console commands to add a different Legendary effect to a Laser Musket, but that is only available for PCs at the moment. Tried one crank on a Two Shot Laser Musket and it did twice the damage. Also, Two Shot weapons actually only use up one ammo instead of 2. So a Two Shot Six-Crank Laser Musket would use up 6 Fusion Cells at once instead of 12, but give the same effect as using 12 cells on a regular Six-Crank Laser Musket. Which is why a Big Boy with the MIRV Launcher is so fun.