Introducing the 1.70 inch bore height AUS Mount for 30mm diameter magnified optics from Reptilia. The AUS Mount is the culmination of a 2 year development program. Like the DOT Mount line the AUS Mount attaches to any M1913 Picatinny rail via the anti-snag spring-loaded nitrided steel clamp and custom bolt mounting system which can be tightened with a T-25 Torx or a flat blade driver to sit flush with the body of the mount for a low-profile streamline design. Also like the DOT Mount line the AUS mount is machined from a single piece of billet 7075-T6 aluminum and is finished with MIL-STD Type III Class 2 hard anodize coating.