Reptilia ROF Diving Board 34mm Rail Mount for Rangefinders
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Fits 34mm Reptilia AUS and 34mm Geissele Super Precision mounts only. Optimised for NightForce ATACR 5-25x56 F1, 7-37x56 and 7-37x56 F1; also fits Vortex RAZOR HD GEN III 6-35x56 FFP and Tangent Theta 5-25x56 and 7-35x56. Not compatible with Schmidt & Bender PM II Ultra Short or Cronus BTR 4.5-29x56.
Not sure it fits your rifle? Ask us before you order
The Reptilia ROF Diving Board is a MIL-STD-1913 accessory rail for 34mm scope mounts, replacing the ring cap on a Reptilia AUS or Geissele Super Precision mount to carry a laser rangefinder, designator or miniature red dot above the scope.
One ring diameter, one job. It turns the top of a 34mm scope mount into a rail — and doubles the clamping area on the scope tube while it does it.
Where a ROF-90 is cut for one optic footprint, the Diving Board carries a rail and lets you decide what goes on it. It was built to a DoD specification for units mounting a Wilcox RAPTAR or a similar rangefinder-designator on a precision rifle, which is why it extends forward over the objective rather than sitting compactly over the turret. Anything with a Picatinny clamp can go on it.
The clever part is underneath. The Diving Board reuses the ring cap from the host mount instead of discarding it, so the scope tube ends up with roughly double the supported area rather than losing clamping surface to the accessory. It is machined from billet 7075-T6 aluminium with nitrided 4140 steel screws, finished in MIL-STD Type III hardcoat anodising, at 100 g (3.5 oz). For a UK precision bolt gun where the rangefinder currently lives in a pocket, that is the difference between ranging a target and losing it. 100% designed and manufactured in the USA.
Fits 34mm Reptilia AUS mounts and 34mm Geissele Super Precision mounts only. The ring diameter is fixed at 34mm on this listing and is not adjustable — a 34mm Diving Board will not clamp a 30mm or 35mm ring. Because it extends forward over the objective, scope clearance matters as well as tube diameter. Reptilia optimised it for the NightForce ATACR 5-25x56 F1, 7-37x56 and 7-37x56 F1, and confirm it also fits the Vortex RAZOR HD GEN III 6-35x56 FFP and the Tangent Theta 5-25x56 and 7-35x56. It is not compatible with the Schmidt & Bender PM II Ultra Short or the Cronus BTR 4.5-29x56. Check your scope against that list before ordering.
Both sit on the ring cap of a 34mm mount, but they solve different problems. A ROF-90 such as the 34mm ROF-90 for Trijicon RMR & SRO is machined for one optic footprint and holds a red dot compactly at 12 o'clock. The Diving Board gives you a length of Picatinny instead, which is what you need for a rangefinder or a designator but is longer and heavier than a dedicated dot mount. If all you want is a red dot above the scope, the ROF-90 is the lighter answer; if you need to mount something that only has a rail clamp, this is the one.
| Fits | NightForce ATACR 5-25x56 F1, 7-37x56, 7-37x56 F1; Vortex RAZOR HD GEN III 6-35x56 FFP; Tangent Theta 5-25x56 and 7-35x56. Not compatible with Schmidt & Bender PM II Ultra Short or Cronus BTR 4.5-29x56 |
|---|---|
| Type | Ring-cap accessory rail, MIL-STD-1913 Picatinny |
| Material | Billet 7075-T6 aluminium, nitrided 4140 steel screws |
| Finish | MIL-STD Type III hardcoat anodised — Black Anodized, FDE Anodized |
| Weight | 100 g (3.5 oz) |
| Mount interface | 34mm Reptilia AUS or Geissele Super Precision scope-ring cap |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-102 · 100-101 |
Put the rangefinder where you are already looking. Order the ROF Diving Board 34mm 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.
| Fits | NightForce ATACR 5-25x56 F1, 7-37x56, 7-37x56 F1; Vortex RAZOR HD GEN III 6-35x56 FFP; Tangent Theta 5-25x56 and 7-35x56. Not compatible with Schmidt & Bender PM II Ultra Short or Cronus BTR 4.5-29x56 |
|---|---|
| Type | Ring-cap accessory rail, MIL-STD-1913 Picatinny |
| Material | Billet 7075-T6 aluminium, nitrided 4140 steel screws |
| Finish | MIL-STD Type III hardcoat anodised — Black Anodized, FDE Anodized |
| Weight | 100 g (3.5 oz) |
| Mount interface | 34mm Reptilia AUS or Geissele Super Precision scope-ring cap |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-102 · 100-101 |
| Category | Optic Mount |
| Barcode | 850053448577 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
It fits 34mm Reptilia AUS and 34mm Geissele Super Precision mounts only, and because it extends forward over the objective the scope itself matters too. Reptilia confirm the NightForce ATACR 5-25x56 F1, 7-37x56 and 7-37x56 F1, the Vortex RAZOR HD GEN III 6-35x56 FFP and the Tangent Theta 5-25x56 and 7-35x56. They specifically exclude the Schmidt & Bender PM II Ultra Short and the Cronus BTR 4.5-29x56.
Anything with a MIL-STD-1913 Picatinny clamp. It was designed around laser rangefinder-designators such as the Wilcox RAPTAR, but a miniature red dot or an illuminator works equally well. That is the main difference from a ROF-90, which is machined for one optic footprint and takes nothing else.
The opposite. The Diving Board reuses the ring cap from your existing mount rather than replacing it, so the scope tube ends up with roughly double the supported area. Torque everything to the mount manufacturer's figures and confirm your zero afterwards, as you would after any work on the rings.
If you only want a red dot above the scope, the <a href="/products/reptilia-rof-90-34mm-trijicon-rmr-sro">34mm ROF-90</a> is lighter and more compact. Choose the Diving Board when the thing you need to mount has a rail clamp rather than an optic footprint, which is nearly always the case with rangefinders and designators.
Optic mounts are sent from the United Kingdom with £5 tracked UK delivery in 7–10 business days, and you'll get tracking by email when it ships. If a part turns out to be the wrong fit, see our returns policy or <a href="/pages/contact">contact us</a> and we'll help sort it.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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