I'm looking for opinions on buis. I have heard the magpul mbus work well but I'm a little hesitant of the plastic construction. Is that wrong of me? Metal just seems less cheap but its magpul they make great stuff in general. I'm going to be using these sights for awhile without an optic. Just for the simple fact that I have always thought it important to be proficient with iron sights incase there was a failure with an optic. I like the troy battle sights and the midwest industries sights. Seeing as mi is down the street from the house I grew up in. I lean towards them. Any input or guidance would be appreciated. Please keep in mind I do not have an unlimited budget but would like a good product. Thanks guys.