The FAST™ MicroPrism positions Primary Arms® MicroPrism™ optics at a 2.26″ optical centerline from the rail. It is also compatible with other optics of industry standard mini-prism footprint (heights may vary depending on the optic).
It comes standard with a two cross bolt rail clamp or can be retrofitted with the FAST™QD (Quick Detach) Lever.
FAST™ is a series of optic mounting solutions that provides 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.