The Reptilia ROF-90 Mount is a drop-in upgrade for the Reptilia AUS Mount or Geissele Super Precision Mount (not included) that adds a red dot mount at 90 to provide fast transition to a non-magnified optic. Each ROF-90 Mount is designed to minimize each optic's distance from the host scope's centerline while providing enough clearance that won't interfere with your sight picture. Each is machined from billet 7075-T6 aluminum and features a Type III, Class 2 hard-anodized finish. Note: The ROF-90 is only compatible with the Reptilia AUS Mount and Geissele Super Precision Mount. Drop-in upgrade for the Reptilia AUS Mount and Geissele Super Precision Mount Adds a mounting point at 90 for a non-magnified optic Machined from billet 7075-T6 aluminum Type III, Class 2 hard-anodized finish