Web Team The “O”-ring prevents solvents from leaking back into the action area and gumming up the trigger assembly. We currently stock “O”-ring rod guides for over 1000 different action/cartridge combinations. Each rod guide is machined to fit specific actions and cartridge families from .17 up to .338 caliber. Unfortunately some rifle chamberings do not lend themselves to an “O”-ring style rod guide, for these cartridges we recommend one of our Adjustable Cone Style Rod Guides. In an effort to better serve the cleaning needs of our customers, we have upgraded our Sinclair “O”-ring rod guides to include integral solvent ports.
