In Stock Vector Optics Frenzy 1x20x28 RD (TEK) Weaver/Picatinny Red Dot Sight
The Vector Optics Frenzy 1x20x28 RD (TEK) is a compact pistol red dot sight designed for speed and precision. It features a large 20x28mm viewing window and a crisp 3 MOA red dot for fast target acquisition. Built from durable 6061-T6 aluminium, it is IP67 waterproof and shock-resistant for reliable use in tough conditions. With 8 brightness settings plus night vision modes, a multi-coated lens for clarity, and an auto shut-off system, it delivers efficient, all-round performance in a lightweight package.
The Vector Optics Frenzy 1x20x28 RD (TEK) Red Dot Sight is a compact, high-performance optic designed specifically for pistol platforms, offering a perfect balance of speed, precision and durability. Built from 6061-T6 aluminium alloy with a scratch-resistant matte finish, it delivers a robust yet lightweight construction suited to demanding use. Its extra-large 20x28mm viewing window and 3 MOA red dot reticle provide fast, intuitive target acquisition while maintaining excellent precision at typical engagement distances.
Engineered for reliability in all conditions, the Frenzy features a fully sealed emitter with an IP67 waterproof and shock-resistant rating, ensuring dependable performance in wet or harsh environments. The optic offers 8 daylight brightness levels plus 2 night vision-compatible modes, allowing seamless adaptation to changing light conditions. The reticle benefits from premium multi-coating and anti-reflective treatment, delivering a clear, vivid sight picture with reduced glare and improved contrast.
Powered by a single CR2032 battery, the sight provides long operational life with an efficient power system and an automatic shut-off function to conserve energy during inactivity. Designed with practical usability in mind, it features audible mechanical click adjustments with a ±1 MOA parallax correction for consistent accuracy. The Frenzy is supplied with a Weaver/Picatinny mount, protective lens cover, hex keys and a cleaning cloth, making it a complete and ready-to-use red dot solution for modern pistol setups.
- Magnification N/A
- Window Lens Size 20x28mm (0.8x1.1")
- Length 46mm / 1.8"
- Width 32mm / 1.2"
- Height 35mm / 1.4"
- Weight (net) 56g / 2.0oz
- Eye Relief Free
- Optics Coating Multi-Coated
- Parallax ±1.0MOA 100 yds
- Elevation Range 45 MOA
- Windage Range 45 MOA
- Dot Size 3 MOA
- Dot Intensity 8 levels & 2 night vision dot
- Mounting Weaver, TEK
- Battery Type CR2032
- Battery Runtime ≥20000 hours
- Finish Black matte
- For close-in work and general shooting
- Real waterproof at 1 meter with 30 minutes IPX6
- 4 Hours Auto Shut Down
- Pistol application for TEK (Docter / Noblex) footprint, and can do TRI footprint too
- High-quality aluminum alloy 6061 T6 in durable black matte finish
- >20,000 hours battery runtime (at weakest visible dot level)
- Tested on 9mm Pistol, 338 Lapua Magnum rifle and 12 GA shotgun
- Package includes retail package, weaver mount, rubber lens cover, hex keys and cleaning cloth etc
- The extra-large window size 20x28mm 0.8x1.1”.
- 6061-T6 aluminum housing in rug construction - lightweight 56g 2.0oz
- 3MOA dot size with 8 Levels & 2 NV red dot intensity
- Weaver mount & compatible for TEK footprint (can do TRI footprint too)
- >40,000 hours for NV dot & >20,000 hours for weakest visible dot
- IPX6 waterproof up to 1-meter depth for 30 minutes
- Take 9mm, 45ACP, 12GA and Lapua Magnum 338 Recoil
- Clear lens with premier and protective coatings
- On/off switches on the side, complete user control and 4 hours auto shut-down
Package includes: red dot sight, weaver mount, rubber lens cover, hex keys and cleaning cloth etc
What warranty comes with these red dots?
-These red dots ship with a VIP lifetime warranty
Does this warranty cover damage from Airsoft?
-Generally not, this would fall under misuse.
What footprint is this red dot?
-Check Vectors website for their guide on red dot footprints to match this red dot with the industry standard.
The red dot appears as a blur / line. What is wrong?
-Lower the power of the dot, you will find the lower power settings will help with the blurriness / lines. Imagine starting into high beam LED headlights, it is the same effect.
What does MOA mean for the size of the dot?
-MOA means the amount of space the dot will take up at 100yds. Eg, 3MOA = 3 inches, 6MOA = 6 inches.
Lifetime Warranty
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

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