Hi I have a take off DPMS Lr-308 Free Float quad rail. This comes with all mounting hardware. Barrel nut, lock ring and rail. This is for the low profile upper. I will incude a PRI barrel nut wrench that has been mod for the DPMS. $80 shipped. Money orders, personal checks or paypal +fee/gift. I can also do a face to face in the Salem-Woodburn-Wilsonville areas.