This mod adds a research that basically upgrades the range of Laser Turrets. In the config file you can modify the science cost per level to upgrade as well as the maximum range upgrade. The default is 100 science packs per level with 10 levels.

Known Bugs:
This is not currently compatible for MULTIPLAYER.

Technical details:
As you cannot actually modify an entities range this mod creates a new entity for each range level of the turret. A script updates turrets when they are built. Another script updates turrets when research is complete. There can be spike lag when finishing research in very large bases as it checks and updates large amounts of entities. For convenience the turret will revert back to the normal appearing ITEM when it is picked up but will change back to the current level when placed.