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Features:9" / Top Rail Length 8.75"Accepts Keymod Accessory RailsClamp On StyleUSA MadeSteel Bar..
Features: Accepts M-LOK accessory rails Clamp On StyleUSA Made Steel barrel nut inclu..
This AR-15 Low Profile Micro Gas Block fits under nearly any quad rail system. It's Clamp-on design ..
The top rail is the same height as a standard flat top upper and the top rail of a quad rail handgua..