The Riton 30mm/1in Precision Quick Detach (QD) Scope Mount provide you with a one-piece rapid deployment option for your scopes with a 30mm and 1 inch tube diameter. Precision machined from 6061-T6 aircraft grade aluminum the mount is optimal for weight savings and strength.Finish: Black AnodizedMaterial: 6061-T6 Aircraft Grade AluminumFits Tube Size: 30mm or 1 inch (inserts for 1 inch)Rail Width: .83in/21mmWeight: 7.5oz/213gHeight: 1in/25.4mm