Possum Hollow Bore Guide #211 - .22-250 Remington, 6.5 x 55 Mauser Fits Ruger #1

Aligns the cleaning rod centrally to the bore to prevent throat or rifling damage. O-ring seals the chamber and prevents solvents from contaminating the action and trigger and helps to keep the bore guide firmly in place. Large replacement O-ring fits all guides and solvent port.