Fast is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2. 26” optical centerline height provides faster/easier reticle acquisition while wearing electronic eardrop/communications headsets, night vision goggles and gas masks and allows for more rapid visual processing of the battlefield by promoting a heads-up posture.   A heads-up posture also helps users maintain a neutral spine position which is more comfortable while wearing helmets, plate carriers, and other heavy gear.