ODIN Works Armalite Forend/Barrel Nut Black. Purchase this upgraded installation kit with the Armalite 2.06" forend adapter and barrel nut. Specifications for ODIN Works Armalite Forend/Barrel Nut: Manufacturer: ODIN Works Additional Features: Includes Armalite 2.06 inch adapter Barrel Nut and Mounting Screws Color: Black Gun Model: AR-10 Package Contents: ODIN Works Armalite Forend/Barrel Nut Armalite 2.06" adapter Barrel Nut Mounting Screws What firearm models does the manufacturer say ODIN Works Armalite Forend/Barrel Nut is compatible with? The manufacturer says that ODIN Works Armalite Forend/Barrel Nut is compatible with AR-10ODIN Works ACC-FA-BRN-AL: Armalite Forend/Barrel Nut Black