JPoint(TM) Micro-electronic Reflex Sight8 MOAThe dot of the 8 MOA JPoint(TM) is noticeably larger and brighter than the 4 MOA model making it easier to find and use, especially in very bright-light conditions where a smaller dot can be lost. In particular, shooters with diminished eyesight tend to prefer the larger 8 MOA dot.Includes sight, sight cover, dial with 1.5mm wrench, CR2032 battery and instructional manual.Compatibility:The JPoint(TM) is compatible with plate 04 of the Glock MOS system. A pair of M4x0.7 screws is required for attachment.The screw length is non-standard, and screws will need to be shortened to fit. A 10mm screw can be trimmed to fit: M4 x 0.7 x 10mm (diameter x pitch x length)