Primary Arms GLx 1x MicroPrism, Prism Optic, 1X20mm, Red ACSS CYCLOPS Reticle, Black PA-GLX-1XMP-CYCLOPS The GLx 1x MicroPrism brings new technology and enhanced optical performance to their best-selling close-quarters prism scope. Optimized for fast target acquisition, the GLx 1x Microprism has near-unlimited eye relief for consistent performance across different mounts and platforms. The GLx 1x MicroPrism also includes their rugged 8-position mounting system.