Bisley AOP55 One-Piece Adjustable Scope Mount
The Bisley AOP55 is a one-piece adjustable scope mount designed for air rifles and rimfire firearms that require precise elevation and windage correction, especially those with dropping barrels. Machined as a single high-profile body, it clamps directly onto a 9.5–11mm dovetail rail and accepts a 1in (25mm) scope tube.
The mount provides up to 2mm of adjustment from one end to the other for both windage and elevation, enabling up to 65 MOA of vertical adjustment to correct a wandering zero. It is compatible with scopes that have an objective lens up to 60mm in diameter on most rifles. The locking screws feature an anti-vibration coating to maintain zero under repeated recoil.
A removable arrestor pin is included to prevent the mount from shifting under recoil thrust.
| Specification | Detail |
|---|---|
| Scope Tube Diameter | 1in (25mm) |
| Adjustment Range (Windage & Elevation) | Up to 2mm (65 MOA vertical) |
| Compatible Rail | 9.5–11mm Dovetail |
| Objective Lens Max Diameter | 60mm |
| Anti-Vibration Feature | Coated locking screws |
| Includes | Removable arrestor pin |
FAQ
What types of rifles is the Bisley AOP55 suitable for?
The Bisley AOP55 is designed for air rifles and rimfire firearms, especially those with dropping barrels that require precise elevation and windage adjustments.
Can this mount adjust for both windage and elevation?
Yes, the mount offers up to 2mm of adjustment for both windage and elevation, providing up to 65 MOA of vertical adjustment.
Is the mount compatible with scopes larger than 60mm in objective lens diameter?
Please contact customer service
Samantha Wilson –
Installed the Bisley AOP55 on my air rifle with a dropping barrel. The adjustment range is excellent—was able to fine-tune my zero after a few shots. The mount stays secure even after repeated firing. The anti-vibration coating helps maintain accuracy. Easy to install and fits perfectly on my 10mm dovetail rail.
Paul Gray –
Good fit for my rimfire rifle. The windage and elevation adjustments are precise. I noticed a small gap when first mounting, but it tightened up after securing the arrestor pin. Works well with a 50mm scope. No issues with recoil shifting during use.
Jonathan Mackenzie –
This mount solved my zero drift problem. The 65 MOA vertical adjustment is more than enough for my shooting range. The single-piece design is sturdy and the anti-vibration screws prevent movement. I recommend it for anyone with a dropping barrel.