Specification:<br />T6 6061 Aluminum body<br />Tan color<br />Monolithic top rail<br />Keymod cutouts for easy install of your favorite accesories<br />lightweight forend<br /><br />Barrel nut inside hole diameter: 1.02 in (26mm)<br />Barrel nut outside diameter: 1.35 in (34.4 mm)<br /><br />Barrel nut mounting thread spec.: 1-1/4-18 UNC<br />Standard parts:<br /><br />7，9，10 inch comes with Aluminum barrel nut;<br />12，13.5，15 inch comes with steel barrel nut<br />(Special request pls contact us or turn to our another listing)<br /><br />Package:<br />one handguard+screw+Barrel nut + wrench+Shim<br /><br />Model: BKR-7TA<br /> Length: 7 inch<br />Weight:<br />170g (aluminum nut)<br /><br />Model: BKR-9TA<br /> Length: 9 inch<br />Weight: 205g (aluminum nut)<br /><br />Model: BKR-10TA<br />Length: 10 inch<br />Weight: 215g (aluminum nut)<br /><br />Model: BKR-12TS<br /> Length: 12 inch<br />Weight:<br />255g (aluminum nut)<br />315g (Steel nut)<br /><br />Model: BKR-13.5TS<br />Length: 13.5 inch<br />Weight:<br />270g (aluminum nut)<br />330g (Steel nut)<br /><br />Model: BKR-15TS<br />Length: 15 inch<br />Weight:<br />300g (aluminum nut)<br />360g (Steel nut)