Warne Vapor Horizontal, 30mm, Low Rings, Matte Finish, Black, Fits Picatinny V613M Vapor Horizontal scope rings are designed, engineered and manufactured by Warne's expert staff in Tualatin, Oregon. Vapor Horizontal ring mounts are perfect for someone looking to purchase affordable US-made scope mounts for their centerfire or rimfire rifle. Available in 1 inch or 30mm, in heights of Low, Medium and High, Warne's Vapor line of mounts were developed and engineered to provide you with a strong and economical mounting solution that outperforms other mounts in their class.