Reptilia AUS Scope Mount 35mm 1.54" Bore Height
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Fits 35mm tube riflescopes only, on any M1913 Picatinny rail. Fixed 39mm (1.54in) bore height, not adjustable. Objective bells up to 77mm clear a flat-top Picatinny rail. Will not accept a scope of any other tube diameter.
Not sure it fits your rifle? Ask us before you order
The Reptilia AUS Mount is a one-piece riflescope mount for 35mm tube scopes, holding the optic at a 39mm (1.54in) bore height on any M1913 Picatinny rail.
One tube diameter, one bore height, one machined body. There is nothing here to shim, stack or align — that work was done on the mill.
Reptilia describe the AUS Mount as the culmination of a two-year development programme driven by an end user group. It is machined from billet 7075-T6 aluminium, finished in MIL-STD Type III hardcoat anodising, and clamps to the rail through an anti-snag spring-loaded nitrided steel clamp. This version weighs 168 g (5.9 oz) and takes a 35mm scope tube.
35mm tubes are the large end of the precision market, used where a scope needs even more internal elevation than a 34mm body can carry. Very few mounts are cut for them, which is why this one exists as its own part rather than as a 34mm mount with inserts. Reptilia's 39mm height — 1.535in, sold in the trade as 1.54in — keeps a large scope as close to the bore as its objective allows. Made in the USA.
Fits riflescopes with a 35mm main tube, on any M1913 Picatinny rail — the flat-top receiver of a bolt-action precision rifle, a rail-topped action, or a flat-top AR-pattern upper. Reptilia state that an objective up to 77mm will clear a flat-top Picatinny rail at this height. Tube diameter and bore height are both fixed on this listing and neither is adjustable, so measure your scope's main tube and decide your height before ordering. Reptilia make the same 1.54in height for 30mm and 34mm tubes. There is no 35mm AUS mount at 1.70in or 1.93in in this range.
| Fits | 35mm tube riflescopes, on any M1913 Picatinny rail |
|---|---|
| Type | One-piece riflescope mount — 39mm (1.54in) bore height |
| Material | Billet 7075-T6 aluminium |
| Finish | MIL-STD Type III hardcoat anodised — Black Anodized, FDE Anodized |
| Weight | 168 g (5.9 oz) |
| Mount interface | Spring-loaded nitrided steel clamp to M1913 Picatinny |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-156 · 100-158 |
Set the height once, then leave the mount alone. Order the AUS Mount 35mm 1.54" 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: Scope Mounts & Optic Risers, Precision Rifle Stocks or browse all Reptilia.
| Fits | 35mm tube riflescopes, on any M1913 Picatinny rail |
|---|---|
| Type | One-piece riflescope mount — 39mm (1.54in) bore height |
| Material | Billet 7075-T6 aluminium |
| Finish | MIL-STD Type III hardcoat anodised — Black Anodized, FDE Anodized |
| Weight | 168 g (5.9 oz) |
| Mount interface | Spring-loaded nitrided steel clamp to M1913 Picatinny |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-156 · 100-158 |
| Category | Optic Mount |
| Barcode | 850022282218 |
£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.
On an AUS Mount it is the scope tube diameter. This one takes a 35mm tube. Reptilia quote bore height separately, and on this version it is 39mm (1.54in). That is the opposite of their ROF and DOT red dot mounts, where the height is the headline figure, so it is worth reading the two numbers carefully before ordering.
Only if its main tube measures 35mm. A one-piece mount is machined to one diameter and cannot be shimmed down or opened out. Check the tube specification from the scope maker rather than measuring with a rule, because 30mm, 34mm and 35mm are close enough to confuse by eye. Objective bells up to 77mm clear the rail at this height.
Bore height sets how high your eye has to sit to see through the scope. A lower mount suits a rifle with a conventional stock and a low comb; a taller one suits a raised comb, a chassis with an adjustable cheek piece, or a shooter who wants a head-up position. Reptilia offer this mount at more than one height and they are separate products, because a one-piece mount cannot be adjusted after it is made.
The clamp indexes into the rail slots, so return to zero is repeatable when the mount goes back into the same slots on the same rail. Note which slot you were in before removing it, and confirm the zero on paper afterwards rather than assuming it — that is ordinary practice with any Picatinny mount, not a caveat about this one.
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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