For my use, which is sporting, the FFs and Vortex sights are perfectly fine. If I were expecting to be in combat, a Trijicon or Aimpoint might be in order for their proven durability, or in the case of some RMR models,,the battery-free operation.
Even though others find the Bushnell sights to be okay, I had three consecutive specimens of one model, not a cheapo by the way, go tits up on me, so I can't recommend them.
