This is a Hi-Viz Sight known as the Litewave, model HHVS41.
HIVIZ(R) LiteWave(R) Front and Rear Sight Combo for Henry Big Boy rifles. H006" ES" ML" OA" R" S" SD" TT" WL. All sights are fully adjustable for windage and elevation. Front LiteWave(R) sight includes Green" Red and White replaceable LitePipes. Rear sight features two Green" non-replaceable LitePipes.
Features:
Green, red and white front sight LitePipes
Non-replaceable green rear LitePipes
