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Maximize your rail space while maintaining a continuous runtime with the EOTech Model EXPS2. This tool offers a cowitnessing of iron sights, as well as convenient side buttons to add a magnifier. It has an adjustable, locking, quick-detach lever to make attaching and removing it seamless. It's powered by a single 123 lithium battery that provides a continuous runtime of 600 hours at a 12 brightness setting.

The FAST Riser is designed to securely elevate block-type red dot optics with a standard lower 1/3 cowitness picatinny mount to a height of 2.26”. It offers an elevated M1913 Picatinny platform for direct optics attachment, such as the EOTech EXPS, Leupold LCO, Vortex UH-1, and other lower 1/3 optics. Note that technically, the FAST Riser will support absolute cowitness optics, like the EOTech XPS and Sig Sauer Romeo8H, but compatibility with the FAST FTC Magnifier Mount may be limited.

This tool comes standard with a rail-grabber clamp, but you can purchase a Flip-Up Offset Backup Rear Iron Sight module separately. This feature provides a fast-transition BUIS capability to the FAST Riser. The Offset Rear Iron Sight Module is 100% compatible with existing Offset Front Sights such as those available from MAGPUL, Dueck Defense, Midwest Industries, and Knights Armament Company.