The FAST MicroPrism Adapter from the American company Unity Tactical moves the position of the Primary Arms MicroPrism optics directly from the mounting rail to a 2.26" optical centerline from the rail, which is advantageous from multiple perspectives. The solution is also compatible with other optics designed for mini-prism industrial standard mounts (height may vary depending on the model).
In the standard version, the Unity Tactical FAST MicroPrism adapter is supplied with a rail clamp with two cross bolts, or it can be equipped with a FAST QD (Quick Detach) lever for quick disassembly.
Compared to standard height mounts, Unity Tactical's FAST optical solutions provide users with a faster sight picture, or aiming, respectively. When using the FAST series mounts, most optics are mounted at a 2.26" optical centerline from the rail. This allows you to visually process the area faster with your head up, which is ergonomically the correct position for these purposes.
FAST mounts are also compatible with other equipment. This allows you to visually assess the position of the dot or reticle faster when using a night vision goggles (NVG), protective mask, plate carriers and other equipment.