Primary Arms GLx Lower 1/3 Cowitness Micro Dot Riser Mount & .125 Inch Spacer

Suitable for: Aimpoint T1, H1, H2, T2, and CompM5 as well as all other models based on the Aimpoint T1 footprint
Height Lower 1/3 Co-witness mount: 41.7 mm / 1.64 inch; with Spacer: 44.8 mm / 1.765 inch (top of rail to center of optic)