This is an economy cleaning package for 5.56mm rifles that's equipped with popular Kleen-Bore hardware. Steel rod sets are featured in these kits because of their strength and durability. Also included in the rifle and shotgun cleaning kits is a muzzle guard, patch holder, phosphor bronze brush, and a 100% cotton mop. These are not included in the handgun/rifle kit because of its universal nature. Cleaning sets are packaged in a convenient, reusable, see-through clamshell.