The Bore Stay locks into the barrel of any AR-15 and protects the inside of the cartridge seat during cleaning. It features a tight O-ring seal that keeps solvent from leaking into the receiver, and the large polymer cylinder contains a solvent port for added convenience.Bore Stay is a hollow tube with an extension.
It locks into the barrel by inserting into the lug area of an AR-15 chamber prior to cleaning.
O-ring seal keeps solvent from leaking into receiver.
Cylinder contains a solvent hole for adding solvent without having to remove the cleaning brush.