[EliteView] 30mm Medium Picatinny Scope Mounts 20mm (x2)

The EliteView 30mm Poltergeist Precision CNC Scope Mounts (sold as a matched pair) are Duncans  high-end scope rings.

They’re part of the UK-based company’s EliteView optics lineup (often bundled with their Spectre 5.5-25x50 scope, but available as the dedicated Poltergeist mounts). These are double-screw CNC-machined rings engineered specifically for precision shooters who demand zero compromise in alignment, repeatability, and recoil resistance.

They’re built to pair perfectly with premium 30mm tube optics and are marketed as “prestigious Poltergeist double-screw CNC mounts, precision-engineered for zero-shift mounting.”

The design prioritizes perfect ring-to-scope contact and rock-solid rail attachment without the need for lapping or constant re-zeroing.

Duncans positions them as a step above the basic rings that often come bundled with other scopes.

 

Why you should buy them

Here’s a clear breakdown of the key reasons these mounts stand out:

Insanely tight tolerances (±1 micron): That’s 0.001 mm — exceptionally precise even by top-tier CNC standards. This level of accuracy guarantees the rings are perfectly matched and parallel, so your scope tube experiences zero stress or distortion.

The result? Consistent point-of-impact, no zero shift under recoil or temperature changes, and maximum optic performance (especially important for high-magnification or first-focal-plane glass). Most mid-range mounts sit in the 10–25 micron range; these are in the “best of the best” category you’d expect from elite custom gunsmithing.

Double-screw design for superior clamping: Unlike single-screw or cheaper split-ring designs, the dual screws per ring deliver even, controlled pressure. This locks the scope securely without crushing the tube or creating uneven stress points — a common issue that can damage expensive optics or cause gradual shifts. It’s especially valuable on airguns (where vibration can be sneaky) or centrefire/rimfire rifles under repeated fire.

Versatile and recoil-rated for real-world use: Explicitly optimized for airguns (low-recoil, high-shot-count precision work) but fully capable on rimfire and centrefire rifles (up to at least 5.56 NATO-level recoil in the bundled scope context). They won’t be the weak link no matter what platform you run them on.

 

The best of the best

Built for the best optics only: These aren’t budget rings. They’re designed to complement flagship scopes without introducing any slop, misalignment, or long-term reliability issues. If you’ve invested in top-tier glass, these mounts ensure the entire system performs at its peak — perfect alignment, repeatable mounting, and rock-solid hold.

No-compromise CNC quality from a specialist maker: Duncans is a respected UK gun shop and manufacturer focused on airguns, precision rifles, and optics. The Poltergeist line reflects their “fine lines, fierce capability” ethos — everything is machined in-house to aircraft-grade standards for durability and repeatability.

 

Summary

In short, if you’re after mounts that are genuinely “as good as it gets” and you want your optic to perform exactly as the manufacturer intended (no compromises in alignment or hold), these are a strong choice.

They’re not the cheapest option out there, but they eliminate one of the most common failure points in a precision rifle setup. Perfect for serious airgun hunters, benchrest shooters, or anyone running high-end glass on rimfire/centrefire rifles who refuses to accept anything less than perfect.

If you’re in the UK or ordering through Duncans, they’re a natural fit with their EliteView ecosystem.