This Sinclair Rod guide is the only one of its kind for the Contenders and Encore handguns and rifles. This rod guide protects the cleaning rod and throat of your barrel. Easy to use, this rod guide is inserted into the chamber and then turned to lock into place behind the extractor. Available for most TC barrels that are chambered for bottleneck cartridges. Accepts our Sinclair Solvent Port. Mfg: Sinclair International