Originally Posted by
HCM
My agency is just beginning to transition from the EO tech 552 to the aim point H-1. Having been responsible for several dozen EO techs, my experience with the durability and reliability of the EO Tech 552's mirrors that of Chuck Haggard, Wayne and Nyeti. If you look through Kyle defoor's postings, you will find some tips and tricks for keeping your EO Tech going including covering rails with aluminum foil for secure mounting and using crazy glue to fix the springs and spring cups in the end of the battery box. These work but if I need aluminum foil and crazy glue to keep my optic functioning it may be a clue I need to look for a better solution.
In fairness, we purchased a small number of XPS for our SRT team prior to the aim point contract and they seem to hold up better than the dual battery models.
In my experience I shoot similar times with both the aim point and the EO tech reticles. Even with the 4MOA dot I seem to shoot better at longer distances (100 yards and beyond)with the aim point versus the EO tech.
Another thing to consider is your intended use for the rifle and optic. If you are executing pre-planned operations you have time to check your batteries and turn your sight on ahead of time. For a reactive/defensive application taking time to turn your sight on is one more thing to remember under stress, If I were pushing a black-and-white or needed a rifle for home defense I would want something that I can turn on and leave on so I can "grab and go ".
Sean M would be the best source of info regarding the SCAR Mk17 and optics. However, my recollection was the SCAR Mk17 was noted as and EO tech killer.