The Daniel Defense AR-15 Barrel Nut 01-013-22032 is an essential component for AR-15 builders and enthusiasts. Made from 4140 steel with a heavy phosphate finish, this barrel nut ensures the barrel is securely connected to the lower receiver. Whether you're building an AR-15 from scratch or replacing a factory barrel nut, the Daniel Defense AR-15 Barrel Nut provides reliable performance and durability. Its robust construction makes it a solid choice for maintaining the integrity of your firearm. Daniel Defense AR-15 Barrel Nut 01-013-22032