HIVIZ Rifle/Muzzle Loader Dovetail Sight Red/Green. The HiViz DOVM Illuminated Fiber Optic Muzzle Loader Sight comes with six .080 diameter LitePipes in red green and white and a key to interchange the LitePipes. The Hiviz DOVM-Series Muzzleloader/Rifle Front Fiber Optic Family Sight fits rifles and muzzle loaders with a 3/8" dovetail. Specifications for HiViz Fiber Optic Front Sight - DOVM: Height: .260in Features of HiViz DOVM Front Sight w/ Illuminated Fiber Optics: Standard 3/8 dovetail front sight Six .080 diameter LitePipes Fits rifles and muzzle loaders with a 3/8" dovetail Package Contents: HiViz DOVM Fiber Optic Front Sight for Muzzleloader/Rifles DOVM-260 HIVIZ Interchangeable 1/4 Tall Front Sight for rifles and muzzleloaders. Fits models with 3/8 dovetail front sight. Includes three Green and three Red replaceable LitePipes.