The Reptilia ROF-90 for ACRO / MPS in 35mm. The ROF-90 is a drop-in upgrade for the Reptilia AUS Mount or Geissele Super Precision(TM) 35mm magnified optic mounts. Originally developed at the request of a user group for a quick transition to a non-magnified optic, the ROF-90 adds options for close-in target engagement and passive aiming with night vision. Additionally, the ACRO or MPS can be zeroed for use with use with subsonic cartridges such as 300 AAC Blackout, while allocating the magnified optic for use with supersonic ammunition.