This Breakthrough Clean Technologies cleaning system is designed to accommodate calibers ranging from .22 through .50 and 5mm, featuring standard 8-32 threading for broad compatibility. The 39-inch carbon fiber cleaning rod provides a safe and effective way to maintain the interior of your barrel, helping prevent damage during cleaning. It is equipped with a rotating, ergonomic aluminum handle and two premium ball bearing sets, allowing the rod to move smoothly through the bore without binding or resistance under pressure. Built for precision and ease of use, this system ensures reliable performance and safe firearm maintenance.