Mfg Item #: 2A-XRSC-15
2A Armament Handguard, Hardcoat Black Anodized, 7075 Al Barrel Nut, 6061 Extrusion, 308WIN, DPMS High Standard, Threads Fit 1 7/16"-16 UN-3A, 15" 2A-XRSC-15