Delta series ar-15 complete brush set is specifically designed for cleaning your ar-15.The brushes are made of a high quality stiff nylon, spun around steel cores for added stability.It features a brush with an 8 x 32 thread that fit on the included cleaning handle or any 8 x 32 cleaning rod.The brush set has everything you need to clean your rifle, plus everything you need to keep your magazines clean and running reliably.Type: Brush/Swab KitSize: .223/5.56mm (Chamber)Quantity: 1 KitBristle Type: NylonMaterial: BrassSuitable For: Firearms