The Reptilia ROF-90 is a 12 o'clock red dot mount for the Aimpoint ACRO and Steiner MPS, machined as a drop-in upgrade for 30mm Reptilia AUS and Geissele Super Precision scope mounts.
One ring diameter, one optic footprint. The ROF-90 puts the red dot directly above the scope at 90°, where your eye already is.
Reptilia call it Ring Optic Forward. The ROF-90 sits on the scope-ring cap of a 30mm mount and carries a miniature red dot at the 12 o'clock position rather than hanging it off a separate rail or an offset bracket. That keeps the dot close to the scope's centreline, so moving between magnified and unmagnified is a change of focus rather than a change of position.
It is machined from billet 7075-T6 aluminium and finished in MIL-STD Type III hardcoat anodising, at 30 g (1.1 oz). On a UK straight-pull AR-15 that earns its keep at the awkward end of the range card: the scope stays set for the shot you planned, the dot takes the one that appears at 25 m, and each keeps its own zero. Made in the USA.
Why shooters choose the 30mm ROF-90
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90° mounting point — the dot sits at 12 o'clock directly above the scope, not offset to one side
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Drop-in upgrade — fits 30mm Reptilia AUS and Geissele Super Precision mounts, with no extra rail or riser
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Billet 7075-T6 aluminium — hardcoat anodised, 30 g (1.1 oz) on the rifle
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One footprint — cut for the Aimpoint ACRO and Steiner MPS and nothing else, so the optic beds flat and the screws land square
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Independent zero — the red dot keeps a close-range zero while the scope keeps yours
What the 30mm ROF-90 fits
Fits the Aimpoint ACRO P1, P2 and C2, and the Steiner Optics MPS. The ROF-90 is a drop-in upgrade for 30mm Reptilia AUS mounts and 30mm Geissele Super Precision mounts only — it is not a Picatinny mount, and it will not fit a scope ring of any other diameter. Ring diameter and optic footprint are both fixed on this listing: 30mm rings, ACRO and MPS footprint. Neither is adjustable, so check both against your own mount and optic before ordering.
Specifications
| Fits |
Aimpoint ACRO P1, P2 and C2, and the Steiner Optics MPS — on a 30mm Reptilia AUS or Geissele Super Precision mount |
| Type |
Ring-cap red dot mount, 90° (12 o'clock) |
| Material |
Billet 7075-T6 aluminium |
| Finish |
MIL-STD Type III hardcoat anodised — Black, Flat Dark Earth Anodized |
| Weight |
30 g (1.1 oz) |
| Made in |
USA |
| Brand |
Reptilia |
| MPN |
100-199 · 100-196 |
Same rifle, two sight pictures. Order the 30mm ROF-90 today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: AR-15 Parts & Accessories or browse all Reptilia.
