Bore Guides are available for all three Windrunners. This is a must have item to properly clean the barrel when it is attached to the receiver. The Bore Guides are machined from black Delrin with a lug intergrated to engauge the bolt release when inserted into the receiver. The Bore Guides use a silicon O ring to insure cleaning solvent can not leak into the receiver. They also have a solvent port and cleaning rod bushing.
