Experience unparalleled durability with the Radian Weapons Guardian Optic Guard engineered specifically for Glock MOS pistols. Crafted from robust 7075 aluminum this black optic guard ensures your Holosun HS507 Comp optic remains securely mounted. Its innovative TRUSEAL technology eliminates the need for additional sealing plates with O-rings on the mounting screws providing a watertight seal that prevents moisture and corrosion in the mounting threads. The advanced STUDLOK threaded studnut interface offers superior thread engagement enhancing hold-down power and shear resistance. Elevate your shooting experience with the most reliable optic mounting system available.