The Reptilia ROF-90 34mm FDE 7075-T6 Aluminum is a drop-in upgrade designed for AR-15 platforms that supports ACRO or Steiner MPS optics at the 90 (12:00) position, providing a close-range optic option without sacrificing magnified performance. This 34mm scope base is compatible as a drop-in enhancement for the Reptilia AUS Mount or Geissele Super Precision 34mm magnified optic mounts, enabling seamless integration with existing setups. Constructed from 7075-T6 aluminum and finished with a durable anodized coating, the ROF-90 delivers a rigid, lightweight solution that maintains alignment under recoil while offering improved versatility for dynamic shooting scenarios. The design facilitates close-in target engagement and passive aiming with night vision, allowing operators to switch between magnified engagement and rapid close-chase shots or NV-compatible cues as conditions dictate. It also enables the ACRO or MPS to be zeroed for subsonic ammunition, such as 300 Blackout, while preserving the magnified optics capability for use with supersonic rounds, optimizing performance across varying ammunition types. This mounting option expands operational flexibility for precision, close-quarters, and NV-assisted shooting on AR-15 platforms.