TRIROCK 25.4mm 30mm Dual Scope Rings Cantilever Mount with Angle Cosine Indicator and Bubble Level fits 21mm Picatinny Weaver Rail

£20.60 (as of 10/20/2026 07:55 PST - DetailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.)

The TRIROCK Dual Scope Rings Cantilever Mount is designed for 30mm scopes and includes bushings for 25.4mm tubes, plus an angle cosine indicator and bubble level. It suits buyers using standard 21mm Picatinny or Weaver rails who want a mount with level checking and forward placement.

SKU: B0859V7747 Category:

Quick Summary

The TRIROCK Dual Scope Rings Cantilever Mount is designed for scopes with 30mm tube diameter and includes bushings to reduce the internal diameter to 25.4mm. It also includes an Angle Degree Cosine Indicator and a built in Bubble Level, making it a practical choice for rifle setups where checking level and cant is important.

Who It Is Best For

This mount is aimed at shooters who want a scope mounting solution with forward placement, level checking, and angle reference features in one unit. It will suit buyers who are setting up a scope on a rifle platform with a standard 21mm Picatinny or Weaver style rail and want a mount that is described as quick to install and remove.

What To Know Before You Buy

It is described as fitting 21mm Picatinny and Weaver style rails, so check your rail size and setup before ordering. The mount is listed with an internal diameter of 30mm and includes bushings for 25.4mm scopes, so confirm your scope tube size matches the variation you need.

Pros
Combines scope mounting, angle indication, and bubble levelling in one product for a more streamlined setup.

Cons
Buyers should check rail and scope compatibility carefully before ordering because the fit depends on the selected size and platform.

Common Buyer Questions

Will this fit a 30mm scope?
Yes, it is listed with a 30mm internal diameter.

Can it also fit a 25.4mm scope?
Yes, it includes bushings to reduce the internal diameter to 25.4mm.

Does it suit Picatinny rails?
It is described as fitting standard 21mm Picatinny and Weaver style rails.

What is the angle indicator for?
It helps show how far the rifle is off level on uphill and downhill shots.

Why is the bubble level useful?
It helps check cant and keep the rifle vertical during setup and use.

Key Details

DetailWhat it means in use
BrandTRIROCK
Tube diameter30mm internal diameter with bushings for 25.4mm
Mount typeDual scope rings cantilever mount
Rail fit21mm Picatinny and Weaver style rails
Extra featuresAngle Degree Cosine Indicator and built in Bubble Level
Construction and finishPrecision machined from 6061 T6 Aluminum with Hard Coat Anodizing

Final Buying View

This TRIROCK scope mount brings together cantilever positioning, tube size flexibility, angle reference, and bubble levelling in one setup. If you want a mount for a standard 21mm Picatinny or Weaver rail and need help with level alignment, it is a straightforward option to consider. Check your scope tube diameter and rail size before ordering to make sure it is the right match.

Brand

TRIROCK

Manufacturer

Foshan Aplus

Binding

Apparel

Product Group

Sports

EAN

0614019477953

UPC

614019477953

Part Number

part_B0859V7747

Warranty

1 YEAR

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