{"product_id":"reptilia-rof-90-35mm-trijicon-rmr-sro","title":"Reptilia 35mm ROF-90 Optic Mount for Trijicon RMR \u0026 SRO","description":"\u003cp\u003eThe Reptilia ROF-90 is a 12 o'clock red dot mount for the Trijicon RMR \u0026amp; SRO, machined as a drop-in upgrade for 35mm Reptilia AUS and Geissele Super Precision scope mounts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOne ring diameter, one optic footprint. The ROF-90 puts the red dot directly above the scope at 90°, where your eye already is.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReptilia call it Ring Optic Forward. The ROF-90 sits on the scope-ring cap of a 35mm 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.\u003c\/p\u003e\u003cp\u003eIt is machined from billet 7075-T6 aluminium and finished in MIL-STD Type III hardcoat anodising. The 35mm version exists because the largest modern first-focal-plane scopes have outgrown 34mm tubes, and a 35mm ring needs its own cap — this is not a 34mm part with a shim. On a UK straight-pull AR-15 or a precision bolt gun it 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.\u003c\/p\u003e\u003ch3\u003eWhy shooters choose the 35mm ROF-90\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e90° mounting point\u003c\/strong\u003e — the dot sits at 12 o'clock directly above the scope, not offset to one side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in upgrade\u003c\/strong\u003e — fits 35mm Reptilia AUS and Geissele Super Precision mounts, with no extra rail or riser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBillet 7075-T6 aluminium\u003c\/strong\u003e — MIL-STD Type III hardcoat anodised\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne footprint\u003c\/strong\u003e — cut for the Trijicon RMR \u0026amp; SRO and nothing else, so the optic beds flat and the screws land square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent zero\u003c\/strong\u003e — the red dot keeps a close-range zero while the scope keeps yours\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat the 35mm ROF-90 fits\u003c\/h3\u003e\u003cp\u003eFits Trijicon RMR and SRO, plus Holosun HS407, HE407, HS507, HE507 and HE508 series. The ROF-90 is a drop-in upgrade for 35mm Reptilia AUS mounts and 35mm 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: 35mm rings, Trijicon RMR \u0026amp; SRO footprint. Neither is adjustable, so check both against your own mount and optic before ordering — a 35mm ROF will not clamp a 34mm ring.\u003c\/p\u003e\u003ch3\u003eHow the ROF-90, ROF-45 and ROF-SAR differ\u003c\/h3\u003e\u003cp\u003eReptilia build three ROF mechanisms. The ROF-90 on this page piggybacks the red dot at 12 o'clock on top of the scope-ring cap. The ROF-45 holds the same optic at 45°, so you roll the rifle rather than shift focus. The ROF-SAR replaces the ring cap entirely instead of sitting on top of it, carrying the dot lower over the bore. On 35mm rings Reptilia currently make only the ROF-90, so the ROF-45 and ROF-SAR are 30mm and 34mm options — see the \u003ca href=\"\/products\/reptilia-rof-45-34mm-trijicon-rmr-sro\"\u003e34mm ROF-45\u003c\/a\u003e and the \u003ca href=\"\/products\/reptilia-rof-sar-34mm-trijicon-rmr-sro\"\u003e34mm ROF-SAR\u003c\/a\u003e if your scope runs a 34mm tube. On 35mm rings with a different optic, the same ROF-90 is made for the \u003ca href=\"\/products\/reptilia-rof-90-35mm-aimpoint-micro\"\u003eAimpoint Micro\u003c\/a\u003e and for the \u003ca href=\"\/products\/reptilia-rof-90-35mm-aimpoint-acro-steiner-mps\"\u003eAimpoint ACRO \u0026amp; Steiner MPS\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFits\u003c\/th\u003e\n\u003ctd\u003eTrijicon RMR and SRO, plus Holosun HS407, HE407, HS507, HE507 and HE508 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eRing-cap red dot mount, 90° (12 o'clock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBillet 7075-T6 aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eMIL-STD Type III hardcoat anodised — Black, Flat Dark Earth Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMount interface\u003c\/th\u003e\n\u003ctd\u003e35mm Reptilia AUS or Geissele Super Precision scope-ring cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMade in\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eReptilia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMPN\u003c\/th\u003e\n\u003ctd\u003e100-281 · 100-282\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eSame rifle, two sight pictures. \u003cstrong\u003eOrder the 35mm ROF-90 today\u003c\/strong\u003e — in stock at Xtreme Tactical Gun Parts with free tracked UK delivery in 7–10 days.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExplore more:\u003c\/strong\u003e \u003ca href=\"\/collections\/ar-15-parts-accessories\"\u003eAR-15 Parts \u0026amp; Accessories\u003c\/a\u003e or browse all \u003ca href=\"\/collections\/reptilia\"\u003eReptilia\u003c\/a\u003e.\u003c\/p\u003e","brand":"Reptilia","offers":[{"title":"Black","offer_id":42843574599760,"sku":"100-281","price":139.99,"currency_code":"GBP","in_stock":true},{"title":"Flat Dark Earth Anodized","offer_id":42843574632528,"sku":"100-282","price":139.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/4978\/1328\/files\/reptilia-rof-90-35mm-trijicon-rmr-sro-black.jpg?v=1786511728","url":"https:\/\/xtremetacticalgunparts.co.uk\/products\/reptilia-rof-90-35mm-trijicon-rmr-sro","provider":"Xtreme Tactical Gun Parts","version":"1.0","type":"link"}