Hoppe's Universal Bore Guide - UBG

The Hoppe's Universal Bore Guide keeps solvents from dripping into the action and prevents excessive cleaning rod contact with rifling lands near the chamber. It features three interchangeable chamber tips to fit .17 to .416 caliber firearms, with an aluminum action collar designed for .695"/.700" diameter bolt actions of any length. A threaded brass pin locks the guide into the action in place of the bolt to allow proper cleaning from the breech.