The Radian Guardian Optic Guard is expertly crafted for Glock MOS pistols offering unparalleled protection for your red dot optic. Utilizing high-strength 7075 aluminum with a hard anodized finish this optic guard delivers robust top front and side impact protection. Its innovative STUDLOK threaded stud-nut mounting interface ensures a secure attachment providing extended thread engagement and enhanced shear resistance. The TRUSEAL feature negates the need for additional sealing plates with preinstalled O-rings on the mounting screws keeping moisture out to prevent corrosion. Enjoy a clear unobstructed irons forward sight picture with backup sights making this optic guard a reliable choice for any serious Glock owner.