"This weapon cleaning system cleans and maintains all .223 Cal./5.56MM rifles, and 9MM through .45 caliber pistols and sub machine guns. The Memory-Flex cleaning rods, solid brass slotted tips, 100% cotton cleaning patches, bore brushes, and an All-in-One cleaner, lubricant, and preservative allow you to quickly clean the receiver, chamber, neck and bore. The brass obstruction removers are used to knock out bore obstructions and stuck cases. Components from the brass scraper tool set are key to precision cleaning of your weapon. The brass scraper helps to clean carbon deposits from flat surfaces such as the bolt face and rails. The handy straight pick is engineered to clean the locking lugs, while the pin punch can be used to remove the pins from your AR 15 or M 4. The end brush is used to remove carbon and to lubricate the slides. The female rod handle can attach to any of the brass scraper components to increase their length. Use Otis to ensure that your weapons work at their peak performance"