Warne 30mm 3/8th Inch 11mm Dovetail QD Medium Matte Rings by Warne Product Overview offers the Warne 30mm 3/8th Inch 11mm Dovetail QD Medium Matte Rings. The Warne 30mm 3/8th Inch 11mm Dovetail rings are machined using state of the art CNC equipment to ensure precise measurements. The Warne 30mm 3/8th Inch 11mm Dovetail rings are made from high quality steel in a vertical split design. The Warne 30mm 3/8th Inch 11mm Dovetail feature a quick release on each ring so removing and installing your scope is a snap. The Warne 30mm 3/8th Inch 11mm Dovetail rings are a Medium ring that will support up to and including a 40mm objective scope. Specifications and Features: Quick Detach Design CNC machined from steel and anodized black for lightweight durability Vertical Split with Torx Screws Medium Height for up to 40mm Objective Scope