Reptilia AUS Scope Mount 30mm 1.54" Bore Height
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Fits 30mm 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 30mm 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 158 g (5.6 oz) and takes a 30mm scope tube.
39mm is Reptilia's own figure and works out at 1.535in, which the trade lists as 1.54in bore height — the same mount described two ways. It is the lowest of Reptilia's AUS heights and suits a rifle with a conventional comb, where you want the scope close to the bore and your head low on the stock. On a bolt gun that is the classic set-up: less holdover geometry to think about at close range, and a natural cheek weld without a raised comb. Made in the USA.
Fits riflescopes with a 30mm 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 30mm mount at 1.70in and 1.93in bore heights, and the same 1.54in height for 34mm and 35mm tubes.
| Fits | 30mm 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, Flat Dark Earth Anodized |
| Weight | 158 g (5.6 oz) |
| Mount interface | Spring-loaded nitrided steel clamp to M1913 Picatinny |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-116 · 100-122 |
Set the height once, then leave the mount alone. Order the AUS Mount 30mm 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 | 30mm 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 Anodize, Flat Dark Earth Anodize |
| Weight | 158 g (5.6 oz) |
| Mount interface | Spring-loaded nitrided steel clamp to M1913 Picatinny |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-116 · 100-122 |
| Category | Optic Mount |
| Barcode | 850022282133 |
£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 30mm 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 30mm. 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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