The Reptilia AUS Mount is a one-piece riflescope mount for 30mm tube scopes, holding the optic at a 43.2mm (1.70in) 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 165 g (5.8 oz) and takes a 30mm scope tube.
1.70in is the middle height in the AUS range, and it exists for two reasons: a bigger objective bell needs more room over the rail, and a chassis with a raised comb wants the scope to come up to meet it. Reptilia publish 43.2mm as the metric figure and 86mm as the largest objective that will clear a flat-top rail — 9mm more than the 1.54in mount allows. Made in the USA.
Why shooters choose the AUS Mount 30mm 1.70"
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30mm tube, fixed — machined for one ring diameter, so the scope beds on metal rather than on shims
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43.2mm (1.70in) bore height — chosen at the mill, not adjusted on the rifle
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One-piece body — rings and base are the same part, so there is no base-to-ring joint to move
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165 g (5.8 oz) — billet 7075-T6 aluminium in MIL-STD Type III hardcoat anodising
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Spring-loaded steel clamp — stays open while you place the mount, then closes flush and anti-snag
What the AUS Mount 30mm 1.70" fits
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 86mm 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 1.54in and 1.93in bore heights, and the same 1.70in height for a 34mm tube.
Specifications
| Fits |
30mm tube riflescopes, on any M1913 Picatinny rail |
| Type |
One-piece riflescope mount — 43.2mm (1.70in) bore height |
| Material |
Billet 7075-T6 aluminium |
| Finish |
MIL-STD Type III hardcoat anodised — Black Anodize, Flat Dark Earth Anodized |
| Weight |
165 g (5.8 oz) |
| Mount interface |
Spring-loaded nitrided steel clamp to M1913 Picatinny |
| Made in |
USA |
| Brand |
Reptilia |
| MPN |
100-238 · 100-239 |
Set the height once, then leave the mount alone. Order the AUS Mount 30mm 1.70" today — in stock at Xtreme Tactical Gun Parts with £5 tracked UK delivery in 7–10 business days.
Explore more: Scope Mounts & Optic Risers, Precision Rifle Stocks or browse all Reptilia.
