American Defense Manufacturing Aimpoint T1 Micro Low Mount Black AD-T1-L STD-TL. Centerline height with the T1/T2/H1 Optic is .88". This mount also fits the Vortex SPARC SPARC AR Vortex Spitfire AR and Primary Arms Micro Dots Optic Must Have A Removable Factory Base. 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. Specifications for American Defense Manufacturing Aimpoint T1 Micro Low Mount: Manufacturer: American Defense Manufacturing Finish: Hard Coat Type 3 Mil-Spec Anodize Fabric/Material: 6061-T6 Aluminum Co-Witness: Low Red Dot Sights-Footprint: Not Applicable Optic Cut: Aimpoint Pro Aimpoint M68 Aimpoint CompM2 Weight: 2.3 oz Condition: New Mount Type: Picatinny Features of American Defense Manufacturing Aimpoint T1 Micro Low Mount: Does not require proprietary tools for adjustment Can be adjusted with your finger or a flat blade screwdriver Lever can be configured to lock to the front or the rear Superior clamping surface to insure maximum rail engagement Hard coat anodized for a lifetime of performance Fully adjustable to fit both in spec and out of spec rail systems Package Contents: American Defense Manufacturing Aimpoint T1 Micro Low Mount American Defense Manufacturing AD-T1-L STD-TL: Aimpoint T1 Micro Low Mount Black