Aim Sports T1 Mount Absolute Co-Witness Black Anodized Aluminum The T1 QD Mount- Lower 1/3 Co-Witness To Aim Point T1 features a machined Recoil Lug For Consistent, Repeatable Mounting. Compatible With Aimpoint T1/H1 Series Optics. Model: T1 Mount Material: Aluminum Finish: Black Anodized