Possum Hollow Bore Guide #37 - .270 Winchester, .308 Winchester Fits Sako TRG, Steyr L, M, SSG

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.