The FAST AEMS positions Holosun AEMS optics at a 2.26″ optical centerline from the rail. It comes standard with a two cross bolt rail clamp, but is compatible with the FAST QD (Quick Detach) Lever. It can be paired with any FAST FTC (Flip-to-Center) magnifier mount. FAST is a series of optic mounting solutions that provide end users with a quicker sight picture than standard height mounts. FAST mounts create a 2.26″ optical centerline from the rail, which allows for more rapid visual processing of the battlefield by ensuring an ergonomically correct heads-up posture. Further, they provide faster and easier dot/reticle acquisition while wearing night vision goggles, protective masks, plate carriers, and other gear.