Long-range tactical shooters can get a more accurate reading with a Vortex® FLARETM Illuminated Bubble Level. The LED and fiber-optic illumination has 3 levels of brightness to adjust for changing light conditions. The low-signature design and integrated Picatinny rail design lets you attach the FLARE Bubble Level with or without the scope. The aircraft-grade aluminum construction takes up less than an inch of your rail and is only 2.4" wide. The recessed push-button control is easily accessible and has an automatic 2-hour shutoff to preserve power. All backed by the Vortex VIP Unconditional Lifetime Warranty.