Optimize your rifle or shotgun with Meprolight’s series of TRU-DOT self-illuminated night-sights. Test results by both entry-level and expert-level marksmen have shown an increase in hit efficiency by over 85% when using TRU-DOT sights, and are compliant with the exacting specifications of the US Military and NATO. These sights utilize the classic three dot configuration and are identical in appearance regardless of the lighting conditions. Features of the Meprolight TRU-DOT Rifle sights. Tritium illuminationEasy installationSeamless transition from day to night use Meprolight Tru-Dot Remington 870, 1100, 11-87 (6-48 Thread) Bead Green Fixed Shotgun Front Sight 1340453101