The GlockA(R) Gen5 Magazine Follower is molded from high-visibility orange polymer for greatly enhanced visibility through the magazine witness holes. A quick glance at the mag informs you of its status: fully loaded, partially loaded, empty. The GlockA(R) Gen5 Magazine Follower is a drop-in, factory-original replacement for a worn out or damaged follower in your Gen5 pistol's mag. Each replacement Gen5 Magazine Follower is manufactured to the same specifications as OEM parts, ensuring perfect fit and function in your factory magazines. Mfg: Glock