I just put a MRF-CX on my upper and now im debating whether or not i should put one of those gas block/iron sight on my rifle. I was wondering if anyone knew if either the PRI gas block or if the YHM gas block would fit in that space cut out for the standard front sight tower and if anyone would happen to have a picture of how it might look. I thought taht the PRI would match my Troy rear sight since the locking mechanism is similar..but the YHM sight looks like it is flush with the top picatinny rail when folded. so im perfectly torn down the middle between the two. Any advice would be great! 
edit: would the Vltor sight tower fit too?

edit: would the Vltor sight tower fit too?
Comment