The visor did not fit exactly on my Waeverschiene 11mm.Das can of course at the recording of the crossbow liegen.Halteklammern did not go far enough together to hold. This I did with the help of a metal file to the visor nachgearbeitet.Dadurch that everything is made of aluminum, it was said no Problem.Wie, I do not know if the visor, or the Waeverschiene was not exactly measure and rate the products therefore positive. Shipping and packaging was tipptop. For goods: Visor is Markellos. Prima browned and looks very high. Looked through the sighting mark is being processed. That is not already given in many others. Illuminated reticle is also all right. Oh yes, I was pleasantly surprised that a battery was included in scope of delivery, which went so not apparent from the description. After everything is installed, I am very satisfied, and the product can only recommend.