I have 2 Z6's, both 1x6's, one is illuminated, one is an extended eye relief. Zero issues with either and I could not ask for more from them. For this market niche of scope, I consider it one of the best. Zero issues with either and one is used on an M1A a lot and one is used on a .375. I am surprised at the above mentioned problems but any scope can break, even alpha scopes.
