Breakthrough Clean BT22BM Bore Mop .22/.223/5.56mm Most Gauges #8-32 Thread

The Breakthrough Clean .22/.223 Caliber/5.56mm Bore Mop 100% Cotton Cleaning Swabs are soft, washable and effective in getting your bore clean. Standard #8-32 thread (standard shotgun #5/16-27 thread on 20g/12g).