It"s a JD Machine. They make them here in SD - they also make quad rails for other OEMs Like Centurian.
I'm going to put another one on the 24" upper (whenever the barrel arrives).
http://www.jdmachinetech.com/merchant2/m...ode=223CHG
I'm going to put another one on the 24" upper (whenever the barrel arrives).
http://www.jdmachinetech.com/merchant2/m...ode=223CHG
