Reptilia Bubble Level Offset for AUS Scope Mount
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Fits the body of a Reptilia AUS scope mount, left or right side. Not a standalone accessory — it does not attach to a Picatinny rail and requires an AUS mount on the rifle. Not compatible with the Reptilia AGS mount or with other makers' scope mounts.
Not sure it fits your rifle? Ask us before you order
The Reptilia Bubble Level is an offset anti-cant level for the AUS Mount System, bolting to the body of a Reptilia AUS scope mount to show whether the rifle is upright before the shot breaks.
Cant is the error nobody sees. At 600 m a few degrees of tilt is a miss you will blame on the wind.
Reptilia designed it as part of the AUS Mount System, to keep the scope aligned and stop the rifle tilting to one side. It is reversible, so it can be fitted on the left or the right of the mount to suit which eye you use and which side you want it in your peripheral vision. It is machined from billet 7075-T6 aluminium in MIL-STD Type III hardcoat anodising.
Rifle cant matters more the further you shoot: tilt the rifle and the scope's elevation no longer works straight up, so a dialled come-up throws the shot sideways as well as short. A level in the corner of your vision turns that from an invisible error into a thing you can correct. Made in the USA.
Fits the body of a Reptilia AUS scope mount and is reversible for the left or the right side. It is an accessory for the AUS Mount System and does not attach to a Picatinny rail on its own, so you need an AUS mount on the rifle first — the range runs from 30mm at 1.54in through to 34mm at 1.93in. It is not compatible with the AGS mount or with scope mounts from other makers.
| Fits | Reptilia AUS scope mount body — left or right side |
|---|---|
| Type | Offset anti-cant bubble level, reversible |
| Material | Billet 7075-T6 aluminium |
| Finish | MIL-STD Type III hardcoat anodised — Black Anodized |
| Mount interface | Reptilia AUS Mount body — not a Picatinny rail |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-268 |
Make the error you cannot see into one you can. Order the Offset Bubble Level 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 | Reptilia AUS scope mount body — left or right side |
|---|---|
| Type | Offset anti-cant bubble level, reversible |
| Material | Billet 7075-T6 aluminium |
| Finish | MIL-STD Type III hardcoat anodised — Black Anodized |
| Mount interface | Reptilia AUS Mount body — not a Picatinny rail |
| Made in | USA |
| Brand | Reptilia |
| MPN | 100-268 |
| Category | Optic Mount |
| Barcode | 850053448355 |
£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.
No. It is machined to bolt onto the body of a Reptilia AUS scope mount, which has mounting locations for it. It does not clamp to a Picatinny rail and it will not fit a mount from another maker, or Reptilia's own AGS mount. If you are not running an AUS mount, this is not the level for your rifle.
Either — it is reversible. Most shooters put it on the side their aiming eye can catch without moving their head, which for a right-handed shooter usually means the left of the scope. Decide before you fit it, since swapping sides means unbolting it.
It matters in proportion to distance and to how much elevation you have dialled. Tilt the rifle and the scope's elevation adjustment no longer acts straight up, so a come-up for distance pushes the shot sideways as well. At short range it is negligible; at long range it is one of the errors most often mistaken for wind.
That is the point of the offset position: the level sits out to the side of the scope where you can glance at it, rather than in the sight picture where it would distract. You check it as part of settling into the shot, not while you are tracking the target.
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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