The Reptilia AUS Mount is a precision-engineered optic mount designed for 30mm diameter magnified optics with a 1.70" bore height in FDE (Flat Dark Earth) finish.Reptilia AUS 30mm Optic Mount1.70" bore height for optimal sight alignmentMachined from billet 7075-T6 aluminumMIL-STD Type III hardcoat anodized finishAnti-snag spring-loaded nitrided steel clampCustom bolt mounting system (5/32 hex or flat blade driver)Low-profile streamlined designCompatible with M1913 Picatinny railsMade in the USADeveloped over 2 years based on end user feedback this mount delivers exceptional durability and reliability for tactical and precision shooting applications where consistent optic positioning is critical.