The 7.62 URX II Forend is the correct rail for an M110 SASS rifle. These rails have been professional cerakoted to match the latest FDE from KAC. The URX2 rail comes with the barrel nut assembly but does require specialized tools to complete the installation correctly, because of the nature of the installs we do offer the service of URX rail swaps at PSD. Please contact us for a quote on any of the URX rail swaps as we are certified armorers.
Please note, with all coatings they are not guaranteed to match 100% of existing parts as parts vary in batches of cerakote.