Bullet-proof material is used to deliver a long lasting lens. It is 20 X more durable than the traditional Maglite lens. Our proprietary Ultra-Clear Shatter-Proof material is engineered and cut by a CNC mill to fit Maglite's OEM specs. This provides an exact fit into your current C or D Maglite. The lens is made from bullet-proof glass material but not bullet proof unless thickness is increased. Litt Industries are not licensed or endorsed by Mag Instrument, Inc.