The Unity Tactical FAST AEMS FDE is a red dot mount that provides end users with a quicker sight picture than standard height mounts. The 2.26" optical centerline height facilitates faster reticle acquisition while using electronic ear protection, night vision goggles, or gas masks. This design promotes a heads-up posture, allowing for more rapid visual processing and helps maintain a neutral spine position, which enhances comfort when wearing helmets and heavy gear.