The AD-T1-L mount is designed for the Aimpoint T1/T2/H1 Micro and is the lowest mount we offer. Centerline height with the T1/T2/H1 Optic is .88?. This mount also fits the Vortex SPARC and Primary Arms Micro Dot. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock Lever system to accommodate both in spec and out of spec rail systems.