Vector Optics Paragon 4-20x50 1" Zero-Stop Rifle Scope
The Vector Optics Paragon 4-20x50 1" Zero-Stop Rifle Scope offers precision and durability with a rugged 25.4mm monotube, etched MIL reticle, and zero-stop turret system. Designed for competitive and tactical use, it features 1/10 MIL click adjustments, lockable turrets, and centre dot illumination for precise targeting. Enjoy crystal-clear, edge-to-edge clarity with fully multi-coated lenses, a second focal plane reticle, and a wide field of view. Built to withstand tough conditions, it's shockproof, fogproof, and IP67 waterproof.

25.4 mm / 1 inch Monotube, rugged build. Good if you prefer a bit less bulk than a 30mm.
Big range of 100 Clicks (10 MIL) per revolution with wide field of view making it good for hunting as well as targets.
Etched Glass Reticle in MIL Configuration. Only the center dot illuminates giving you a precise target dot withour light bleed. Ideal for target competition
Accurate 1/10MIL click value for detailed precision.
Turret Lock stops mistaken changes by knocks in the field.
Zero Stop returns you effortlessly to a pre-set zero point without having to fiddle about or start over.
- True 5x Zoom factor 25.4mm 1in monotube, tough build
- 100 Clicks Per Revolution
- LeREE Lens & VePRO FMC Reaches 92% Light Transmission
- Constant 4-inch Long Eye Relief
- Wide Field of View and
- Edge-to-Edge Image
- Min 10Yds to Infinite Side Focus
- Etched Glass Reticle in MIL Configuration
- 6 Levels Brightness Illumination,
- Only Center Dot Illuminated, with
- Power Ring Lever
- 1/10MIL Tactical Turret Adjustment w/ Zero Stop
- Turret Lock Feature
- Magnification 4-20x
- Objective Lens Diameter 50 mm
- Focal Plane Second Focal Plane
- Eye Relief 92 mm / 3.6 in
- Lens Coating Fully Multi-coated
- Field of View @ 100 yd 27.9–5.6 ft
- Field of View @ 100 m 9.3–1.9 m
- Angular Field of View 5.3°–1.1°
- Reticle VEPG-T MIL
- Tube Diameter 25.4 mm
- Side Focus 10 yards to Infinity
- Click Value 1/10 MIL
- Turret Function Zero Stop
- Elevation Adjustment Range 17.5 MIL
- Windage Adjustment Range 17.5 MIL
- Diopter Compensation +2 to -3
- Illumination Settings 6 Gears
- Battery Type CR2032
- Waterproof Rating IP67
- Fogproof Nitrogen-filled
- Shockproof 750 G
- Housing Material 6061 T6 Aluminium Alloy
- Finish Matte Black
- Length 344 mm / 13.5 in
- Weight 765 g / 27.0 oz
- Rugged 1-inch monotube construction for durability
- Zero-stop turret system for quick return to zero
- Lockable turrets to prevent accidental adjustments
- Etched glass MIL reticle with illuminated centre dot
- Second focal plane design for consistent reticle size
- Fully multi-coated lenses for bright, crisp image quality
- Edge-to-edge clarity across the entire field of view
- Audible and tactile turret clicks for precise adjustments
- Side focus adjustment for enhanced target clarity
- Tactical styling suited for competitive and field use
- Waterproof, fogproof, and shockproof for all-weather reliability
- Vector Optics Paragon 4-20x50 1" Zero-Stop Rifle Scope
- Weaver/Picatinny 20-22mm base width scope rings. For use with other bases such as 11mm dovetail you will need to buy suitable mounts or get an adapter to use the supplied mounts which are very good.
- Instructions
- Lens caps
- Cleaning cloth
Five Years Limited Warranty:
- Your Vector Optics product is warranted free of defects in materials and workmanship for a period of 5 years from the time of purchase by the original purchaser. Batteries are not covered under warranty.
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.