The Tipton Universal Bore Guide will help protect the bore and action of your rifle by properly aligning the cleaning rod and reducing solvent overflow. Cleaning without a bore guide can allow the rod to "bow" and rub or gouge the chamber and throat of the bore, causing real damage and loss of accuracy. Keeping the rod properly aligned not only protects your barrel, it directs the force exerted on the cleaning rod handle, allowing tight patches to be pushed more easily. The Universal Bore Guide is constructed out of an anodized aluminum tube for durability and has an integrated solvent port. Inserts and secures into the bolt position. Fits most bolt action rifles and AR-15s.