Quick Summary
The Nikko Stirling Mountmaster 3-9×40 PX ADJ riflescope is a telescopic sight with mounts included, designed for airgun and rifle use where 11mm dovetails are needed. It features PX adjustment, a fast focus eyebell, a Half Mil Dot reticle, and a minimum focus of about 10 metres on full magnification.
Who It Is Best For
This scope will suit shooters who want a compact variable magnification optic with supplied mounts and a clear sight picture for modern airguns or rimfire rifles that use 11mm dovetails. It is also a practical choice for buyers looking for a scope with adjustable focus and a simple reticle layout.
What To Know Before You Buy
It is listed with a 1 inch tube size and weighs 560 grams. The supplied mounts are for 11mm dovetails, so it is worth checking compatibility with your rifle before ordering.
Pros: Mounts are included, and the scope offers PX adjustment plus fast focus for easier setup.
Cons: It is intended for 11mm dovetails, so other mounting systems will need to be checked carefully.
Common Buyer Questions
Does this scope come with mounts?
Yes, it is supplied with double clamp two piece mounts with a stop pin for 11mm dovetails.
What rifles does it suit?
It is listed for most modern air rifles and rimfire rifles that use 11mm dovetails.
What is the reticle type?
It uses a Half Mil Dot reticle.
How close can it focus?
The minimum focus on full magnification is stated as about 10 metres.
What tube size does it use?
It is listed with a 1 inch tube size.
Key Details
| Detail | What it means in use |
|---|---|
| Brand | Nikko Stirling |
| Model | Mountmaster 3-9×40 PX ADJ |
| Product type | Riflescope |
| Magnification | 3-9x |
| Objective size | 40 |
| PX adjustment | Helps with focus adjustment |
| Reticle | Half Mil Dot Reticle |
| Minimum focus | About 10 metres on full magnification |
| Tube size | 1 inch |
| Weight | 560 grams |
| Mounts | Supplied with double clamp two piece mounts for 11mm dovetails |
Final Buying View
If you want a Nikko Stirling riflescope with mounts included, adjustable focus features, and a 3-9×40 format, the Mountmaster NMM3940AO is a straightforward option to consider. It is especially relevant if your rifle uses 11mm dovetails. Check your mounting setup before ordering, then choose it if the specification matches your rifle and shooting needs.
