Rival Arms RA50G111S: For seasoned shooters, it\'s well known that plastic guide rods might chip, crack, or break, leading to feeding or ejection issues. Even minor flex can impact accuracy. Rival Arms Guide Rod Assemblies rectify these common issues, offering a lifelong guarantee of dependable service.The guide rod within the assembly is a premium spring (stock weight), fully assembled and ready to use. To ensure strength and high resistance to corrosion, it is CNC-machined from a solid stainless steel billet. There is no need for a gunsmith for installation or maintenance.