FAST(TM) is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. The FAST(TM) Riser Absolute creates a 2.26" optical center line from the rail when paired with an absolute co-witness rail mounted sight. It provides faster and easier dot/reticle acquisition while wearing night vision goggles, a protective mask, plate carriers and other gear. FAST(TM) mounts allow for more rapid visual processing of the battlefield by promoting a heads-up posture. The FAST(TM) Riser Absolute can also be fitted with a Quick Detach Lever. SPECS INTERFACE - M1913 RAIL HEIGHT - 2.26" TO OPTICAL CEN Mfg: Unity Tactical