Night Fision Optic Plate features strong stainless steel construction with a black nitride finish and a 0.20 thickness. Engineered specifically as a direct firearm fit for slimline Glock MOS 43, 43X, and 48 pistol platforms, this optic base provides a secure, precise mounting interface for optics utilizing the Holosun EPS Carry footprint mount type. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.