Vortex all the way, there office is just around the corner from our UPS center here in Middleton Wi. You walk in the door and they almost trip over each other to help you out. Warranty is unconditional, I had a ML slip out of my hands when cleaning and the ML landed on the bell of the scope and bent it, I took it in to them and told them what happened they took the scope from me offered me a soda then went into the back room and returned with another new scope still in the box. I must have a dozen of the VORTEX Scope and never had a problem with them.