Sightron S1 4-12x40 SFP AO G2 Duplex 1/4MOA 1" Rifle Scope
The Sightron S1 4-12x40 SFP AO G2 Rifle Scope redefines the classic hunting riflescope by combining modern optical technology with rugged durability. Designed for hunters who demand precision, this scope features a compact, lightweight 1-inch aircraft-grade aluminum tube, making it the perfect companion for any hunting adventure, whether you're out at first light or tracking at dusk.
At the heart of the S1 is its exclusive MC-333 multi-coated lenses, providing exceptional clarity, sharpness, and contrast across all magnification ranges. These advanced coatings reduce flare, enhance light transmission, and improve color accuracy, ensuring a bright and vivid sight picture in any lighting conditions. The adjustable objective focus allows for parallax correction from 10 yards to infinity, ensuring precise targeting no matter the distance.
Built to withstand the toughest conditions, the Sightron S1 4-12x40 is shockproof, rated for impacts up to 1,000G, and tough enough to handle high-caliber recoil. It is also IPX7 waterproof and nitrogen-purged, offering lifetime fog-free performance in all weather conditions. This rugged construction ensures the scope will hold up in any environment, letting you stay in the field longer and push through the elements without worry.
Perfect for hunters and precision shooters, the Sightron S1 features a second focal plane reticle, where the reticle size remains constant at all magnifications. The 1/4 MOA adjustments offer precise windage and elevation settings with up to 60 MOA of adjustment, while the capped hunting turrets protect your settings from accidental changes, ensuring you stay on target throughout your hunt.
The Sightron S1 4-12x40 SFP AO G2 Rifle Scope is built for performance, providing sharp optics, rugged construction, and unmatched reliability for hunters and shooters. With features like exceptional optical clarity, durability for the harshest conditions, and easy-to-use adjustments, this scope will elevate your shooting experience and make every shot count.
- Magnification 4-12x
- Objective Lens Diameter 40mm
- Eye Relief 3.5 in - 3.2 in
- Field of View 29.97 ft - 9.95 ft
- Tube Size 1-inch
- Turret Style Capped Hunting
- Zero Stop No
- Click Value 1/4 MOA
- Minutes Per Revolution 15 MOA
- Max Elevation Adjustment 60 MOA
- Max Windage Adjustment 60 MOA
- Reticle Type Duplex
- Parallax Setting 10 Yards - Infinity
- Focus Type Adjustable Objective
- Focal Plane Second Focal Plane
- Illumination No
- Finish Matte Black
- Waterproof Yes, IPX7 rated
- Anti-Reflection Technology MC-333 Multi-Coatings
- Fog Proof Yes
- Length 12.9 inches
- Weight 17.1 ounces
- Sunshade Not Included
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Exclusive Optical Design: The Sightron S1 is built with a precision-engineered optical system, utilizing high-quality glass to reduce chromatic aberrations, improve color accuracy, and ensure excellent light transmission for clear, bright images.
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MC-333 Multi-Coating Technology: Sightron’s proprietary multi-coating reduces flare, enhances contrast, and increases light transmission, providing sharp, vivid views in any lighting condition and extending your time in the field.
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Adjustable Objective Focus: The scope features a parallax adjustment that allows you to fine-tune the focus from 10 yards to infinity, ensuring precise targeting at any range and eliminating parallax errors.
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Second Focal Plane (SFP) Reticle: The reticle remains the same size at all magnifications, making it ideal for hunters who prefer a consistent sight picture and easy holdovers across different zoom levels.
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Durable Construction: The 1-inch tube is milled from a single piece of lightweight, aircraft-grade aluminum, offering a tough yet light frame that’s both strong and easy to carry through any environment.
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Shockproof Design: Rated to withstand up to 1,000G of shock, the scope is designed to handle the recoil from high-caliber rifles, ensuring it stays perfectly calibrated, even after heavy use.
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Waterproof (IPX7 Rated): The scope is built to withstand harsh weather conditions, with an IPX7 waterproof rating that ensures it will continue to perform even when submerged briefly in water.
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Fogproof Performance: Nitrogen gas is charged into the scope to prevent internal fogging, ensuring clear views in the most extreme temperatures and weather conditions, from humid environments to frigid cold.
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Capped Hunting Turrets: The windage and elevation turrets are capped to prevent accidental adjustments while in the field, ensuring that your settings remain precise and secure throughout your hunt.
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Precision Focus Eyepiece: The eyepiece is designed to provide a customizable sight picture, offering extended eye relief and accommodating different shooting positions for comfort and accuracy.
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Easy to Use: With 1/4 MOA adjustments for both windage and elevation, the scope provides reliable and intuitive control over your shots, helping you make quick adjustments in the field.
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Versatile Magnification Range: The 4-12x zoom gives you the flexibility to engage targets at various distances, whether you're scanning the landscape or zooming in on a precise shot at longer ranges.
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Lightweight and Compact: Despite its rugged durability, the scope remains lightweight and compact, ensuring it doesn’t weigh down your gear and allows for easy handling during fast-paced hunting situations.

- Sightron S1 4-12x40 SFP AO G2 Duplex 1/4MOA 1" Rifle Scope
- Instruction Manual
- Set of Lens Covers
- Lens Cleaning Cloth
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.