Product Name: X Series 1 Inch 30mm 34mm Tactical Scope Weaver Picatinny Mount Ring Model NO.: RG12 Structure: Weaver/Picatinny Mount Ring Material: Aluminium Custom Brand: Available Fit for Rail: Picatinny / Weaver Color: Black Available Materials: 6061-T6, 7075-T6 Aluminum, Steel, Zinc-2 or Alloy Trademark: Nutrek Transport Package: Clamshell with Info Card / Gift Box Specification: 30mm Origin: China Product Description NUTREK manufacturers complete specs of Scope Rings that pairs with most optics - with different models fit for the 1-inch tube, 30mm tube, 34mm tube, etc, at different saddle heights that accept close range 24mm aperture to 56 big size aperture for long-range and low light condition.NUTREK scope rings are constructed with meticulous attention to accuracy, with the strictest requirement for concentricity and tolerance. For varied requirements, we're able to manufacture scope rings in different materials including STEEL, 6061-T6 or 7075-T6 Aluminum, Zinc-2 Alloy, etc.ITEM#TUBE DIA.PROFILESADDLE HEIGHT(mm)RG12INH1''HIGH28.3RG12INM1''MEDIUM16.3RG12INL1''LOW9.3RG1230H30mmHIGH26RG1230M30mmMEDIUM14RG1230L30mmLOW7RG1234H34mmHIGH24RG1234M34mmMEDIUM12Enjo Sports IncPlease contact us for more product information.OEMor ODM service are welcome, we have a professional design team at your service.Web: www.taband.com.cn www.borekare.com www.nutrekoptics.comAdd: #17-19, FL. 5, Building 5, No.25 Jingfu Rd., Qingyuan, Guangdong, 511518 China