Shapeless crafting: Mining Laser + Dispenser
Have internal EU storage like other machines (can be powered by cable / batteries), EU drained per shot. Triggered by redstone signal just like regular dispenser (shoots 1 beam straight forward when input redstone goes from off to on).
Have side slots just like machines for adding Overclocker Upgrade, Energy Storage Upgrade and Transformer Upgrade. Lazer direction can be realigned with Wrench.
Beam type output dependent on Overclocker Upgrade amount: (Just like Mining Laser mode)
0: Short Range Beam
1: Normal Beam
2: Long Range Beam
3+: Explosive Beam
THIS SUGGESTION IS NOT A FUCKING WEAPON.
It can be used as defense turrets but probably mainly is going to be used on other stuffs. (For example: automatic melon / pumpkin harvest without making 10000000 pistons and redstone circuitry