The Wheeler Delta Series Complete Brush Set is specifically designed for cleaning your tactical style rifles. The brushes are made of a high quality stiff Nylon, spun around steel cores for added stability. The brushes feature 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. Magazine/Upper Receiver Brush with Magazine Takedown Tool Bolt Carrier Brush Chamber Brush .22 Cal Bore Brush Handle for action and chamber cleaning