AR15 .223 Cal. / 5.56mm Chamber & Lug Recess Kit Everything needed to thoroughly clean the chamber and lug recesses of your rifle. Kit includes 10" chamber rod with handle, chamber brush, chamber mop and cotton rolls. Includes: Micro-Polished Stainless Chamber Cleaning Rod with Aluminum Handle Black Delrin Chamber Rod Guide Holder for Lug Recess Cotton Rolls 12 Cotton Rolls (1.5" Length) Bronze Chamber Brush Cotton Chamber Mop Double End Nylon All Purpose Brush Packaged in Clear Reusable Hang Tube 8 x 32 Standard American Thread.