Quick Summary
The Nikko Stirling Mountmaster 3-9×40 Mil Dot Zoom Riflescope is a telescopic sight for airgun and rifle use, supplied with mounts for 11mm dovetails. It is listed with a 3 to 9x zoom, a 40mm objective, a Half Mil Dot reticle, a 1 inch tube size, a weight of 420 grams, and a minimum focus of approximately 20 metres on full magnification.
Who It Is Best For
This scope suits shooters who want a zoom riflescope with supplied mounts and a simple reticle layout. It is a practical choice if you are fitting to an 11mm dovetail and want a sight described for modern airguns and .22 rimfires. It is also relevant for buyers comparing tube size, reticle style, and minimum focus before ordering.
What To Know Before You Buy
Check that your rifle has an 11mm dovetail if you want to use the supplied mounts. The minimum focus is listed as approximately 20 metres on full magnification, so it is worth checking that this suits your intended use. The scope is described with a 1 inch tube size and a 420 gram weight.
Pros: Supplied with mounts and offers a 3 to 9x zoom range with a Half Mil Dot reticle.
Cons: Check the 11mm dovetail fit and the approximate 20 metre minimum focus before ordering.
Common Buyer Questions
Does this come with mounts?
Yes, it is supplied with mounts for 11mm dovetails.
What type of rifles is it aimed at?
It is described for modern airguns and .22 rimfires.
What magnification does it have?
It has a 3 to 9x zoom range.
What reticle does it use?
It uses a Half Mil Dot reticle.
What should I check before buying?
Check your dovetail fit, tube size, and whether the approximate 20 metre minimum focus suits your use.
Key Details
| Detail | What it means in use |
|---|---|
| Brand | Nikko Stirling |
| Model | Mountmaster NMC3940 |
| Magnification | 3 to 9x zoom |
| Objective size | 40mm |
| Reticle | Half Mil Dot |
| Tube size | 1 inch |
| Mounts | Supplied for 11mm dovetails |
| Weight | 420 grams |
| Minimum focus | Approximately 20 metres on full magnification |
Final Buying View
The Nikko Stirling Mountmaster 3-9×40 is a straightforward zoom riflescope with supplied mounts, a Half Mil Dot reticle, and clear fit guidance for 11mm dovetails. If those details match your rifle and intended use, it is a sensible option to consider.
