The Leupold BackCountry Cross-Slot 30 mm High Ring Set is designed to secure your scope to your rifle and allows for increased contact with the base for improved stability. The 2-piece 7075-T6 aircraft-grade aluminum construction delivers lightweight, rugged performance and durability. Matte finish. Leupold BackCountry Cross-Slot 30 mm High Ring Set Black - Scope Rngs And Rifle Accessories at Academy Sports