ROF-90 ONLY COMPATIBLE WITH REPTILIA AUS MOUNTS AND GEISSELE SUPER PRECISION MOUNTS ! Introducing the Reptilia ROF-90 for ACRO / MPS in 34mm. The ROF-90 is a drop-in upgrade for the Reptilia AUS Mount or Geissele Super Precision 34mm magnified optic mounts. Originally developed at the request of a user group for a quick transition to a non-magnified optic, the ROF-90 was adds options for close-in target engagement and passive aiming with night vision. The ROF-90 for a Aimpoint ACRO or Steiner MPS at 90Adeg (12:00) to add a close-range optic to your magnified scope. 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. Each ROF model is designed to minimize each optic's distance from the host scope's centerline, while ensuring enough clearance that the sight picture isn't obscured. The 34mm ROF-90 for ACRO/MPS is immediately available in MIL-STD Type III, Class 2, hard anodize, Black and Flat Dark Earth and Clear colors. Compatible with: Aimpoint - ACRO P1 and P2 Steiner Optics - MPS Features: Machined from billet 7075-T6 aluminum MIL-STD, Type III, hardcoat anodized 35 grams Made in USA