Laser turrets 1

1x 1x 1x
x 450

Requires

  Silver Processing
  Zinc Processing
  Gold Processing
  Laser turrets

Allows

  Laser turrets 2
  Laser turrets 3

Unlocks

  Gold Sapphire Laser Turret
  Silver Sapphire Laser Turret
  Bronze Sapphire Laser Turret