Nikko Stirling Mountmaster 4-12x50 AO Illuminated HoldFast SFP Rifle Scope
- Supplied with 3/8” mount
- 1 inch matte black alloy body tube
- AO models feature parallax adjustment on bell 10yds to infinity
- IR models feature illuminated reticle red/green
- Multicoated lenses
- Waterproof, fogproof, shockproof
- Nitrogen filled
- 1/4 MOA adjustments (7mm@100m)
- Fast eyefocus
Nikko Stirling Mountmaster 4-12×50 AO Illuminated HoldFast SFP Rifle Scope
Nikko Stirling MountMaster AO illuminated Based on our popular MountMaster series with the added addition of a fully adjustable objective with adjustment from 10 Yards to infinity plus illuminated Red/Green Reticle. Wide field of view with adjustable eye piece and std 1/4" adjustments. Ideal For Airgun, Rimfire and small centrefire Rifles. Supplied with Double Screw 3/8" Match Mounts and dust covers One Inch Tube illuminated HoldFast© Reticle 4-12x50
The MountMaster AO series has been developed for all types of shooting. All models feature an Adjustable Objective (AO) which ranges from 15 yards to infinity. Using superior optical coatings and easy to use features, the MountMaster AO series will suit just about any shooting application you need without breaking the bank.
All our tried and proven MountMaster scope series are competitively priced and are rugged enough to stand up to whatever you throw at them. Featuring 1/4 finger adjustable turrets and accurate double screw 3/8 match mounts as well as fully adjustable parallax on the bell (AO) and available with or without illuminated Reticle (IR). All MountMaster scopes feature fully multi-coated lenses, are shock tested and dry-nitrogen purged at the factory to make them fully water and fog proof for guaranteed performance, whether you are on a hunt or at the range.
Nikko Stirling Mountmaster 4-12×50 AO Illuminated HoldFast SFP Rifle Scope
- Tube Diameter: 1 inch
- Magnification: 4-12x
- Objective lens diameter: 50mm
- No. reticles available: 1
- Waterproof: Yes
- Fogproof: Yes
- Illuminated reticle: Yes
- Length: 343 mm
- Weight: 403g
- Finish: Matte
- Colour: Black
Nikko Stirling Mountmaster 4-12×50 AO Illuminated HoldFast SFP Rifle Scope
- Supplied with 3/8” mount
- 1 inch matte black alloy body tube
- AO models feature parallax adjustment on bell 10yds to infinity
- IR models feature illuminated reticle red/green
- Multicoated lenses
- Waterproof, fogproof, shockproof
- Nitrogen filled
- 1/4 MOA adjustments (7mm@100m)
- Fast eyefocus
Nikko Stirling Mountmaster 4-12×50 AO Illuminated HoldFast SFP Rifle Scope
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers




We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email order@tacticalscope.co.uk.
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.