The Battenfeld 156715: Delta Series AR-15 Complete Brush Set has been intricately designed for the sole purpose of ensuring your AR-15 is thoroughly cleaned. Each brush is expertly crafted using superior quality stiff Nylon while being wound around steel cores to offer added sturdiness.A key feature to note is the brush\'s 8 x 32 thread fitting on the included cleaning handle or any 8 x 32 cleaning rod. With this comprehensive brush set, you won\'t just be able to maintain your rifle in pristine condition, but also keep your magazines clean and reliable.