The FAST series of optic mounts provides end users with a quicker sight picture than standard height mounts. A taller centerline height provides faster/easier reticle acquisition in all conditions, but especially while wearing tactical gear, night vision goggles, gas masks, helmets, and plate carriers. FAST mounts allow for more rapid visual processing of the battlefield by promoting a heads-up posture. Machined 7075-T6 / Type III Hardcoat Anodized. -Accepts 30mm and 34mm Scopes -Places optic's centerline 2.05" above rail -Compatible with optional offset BUIS/MRDS mount Mfg: Unity Tactical