The Hoppe's® Universal Bore Guide keeps solvents from dripping into the action, and prevents excessive cleaning-rod contact with the rifling.
Three interchangeable chamber tips to fit .17 to .416 caliber
Aluminium action collar fits .695"/.700" (17.65mm/17.78mm) diameter bolt actions of any action length
Threaded brass pin locks the guide into the action in place of the bolt to allow proper cleaning from the breech