Armaspec 13 Slot ELEV8 iBEAM XL Riser Black. It raises these optics to a precise height positioning the optical center line at 2.26 inches above the rail. This aids the shooter in many diffrent areas Including shooting passively with Night Vision or shooting with a gas mask. It also helps get the sight in in line with the shooters vision speeding up time on target. This elevation provides a solid platform making it convenient to directly attach optics including those designed for lower 1/3 co-witness configurations such as the EOTech EXPS and Vortex UH-1 and many other optic choices out on the market. Specifications for Armaspec 13 Slot ELEV8 iBEAM XL Riser: Manufacturer: Armaspec Color: Black Features of Armaspec 13 Slot ELEV8 iBEAM XL Riser Coming Soon Package Contents: Armaspec 13 Slot ELEV8 iBEAM XL Riser Armaspec ARM632-BLK: 13 Slot ELEV8 iBEAM XL Riser Black