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Description
Zero Compromise Optics ZC840 8-40x56Please note: Due to change of supplier, all ZC Optics currently have extended wait times on delivery. Zero Compromise Optics has set the next standard in magnification, imaging performance & mechanical precision with this scope. With its 8 40x magnification & unsurpassed resolution, this optic transcends anything you've ever seen before. The ZC840 has an elevation adjustment range of 28mils & a field of view of 4. 6m 100m 1. 0m 100m at 40x
Please note: Due to change of supplier, all ZC Optics currently have extended wait times on delivery.
Zero Compromise Optics has set the next standard in magnification, imaging performance & mechanical precision with this scope. With its 8-40x magnification & unsurpassed resolution, this optic transcends anything you've ever seen before. The ZC840 has an elevation adjustment range of 28mils & a field of view of 4.6m/100m - 1.0m/100m at 40x magnification, giving shooters a substantial image to keep their target in view.
FEATURES:
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36mm Main Tube
The tube delivers optical and mechanical systems that work in unison for supreme performance & no compromises. With more internal room, optical components are better protected to withstand external distortion, stress and impact. Further, extra room means ZCO can deliver larger lens components for remarkable optical quality while providing massive amounts of elevation and windage travel. In this case, big is better; significantly better.
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56mm Objective with ED Lenses
ZCO scopes use Extra-low Dispersion (ED) lenses for the objective components to maximise resolution, colour correction and contrast. These larger-lens components bring better light transmission, flatness of field, and premium resolution.
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Turrets like no other
Very audible, super-precise, perfect visual alignment and lockable; these turrets provide the ultimate in consistency and repeatability. Elevation and windage click-spline mechanisms are built using hardened steel that's eroded cut for the highest level of precision. They also have a large adjustment range for elevation and windage travel.
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Real Rugged
Every material has been carefully selected for its ability to withstand constant cycling with zero compromises to performance. Critical junctions and mechanical areas are stronger thanks to a thicker cross-section in specific areas.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Perfectly fits what I needed for my espresso habit!
Color: Black&Silver
This Maestri House mini coffee scale is a great little tool for espresso and pour-over. The size is compact enough to fit under a portafilter or cup, and the 0.1g accuracy makes dialing in coffee much easier. I like the built-in timer, rechargeable USB-C battery, and clean black-and-silver look. It feels precise, practical, and easy to keep near the espresso machine. Great value for anyone who wants more consistent coffee.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Maestro House Mini Coffee Scale
I have begun to drink tea, pu’erh tea to be specific. I have several varieties and I have had a problem with getting consistent results. The varieties can be very different in size depending on when the leaves are harvested (leaves harvested in spring are much smaller). So the easiest way to get consistent results is by weight. This scale is very easy to use with a ceramic tea scoop, set the tea scoop on the scale, zero it out and add tea leaves. This has made my results much better, without the wild swings in strength I had been getting before trying to eyeball even measures. This scale gives me accurate measurements to one tenth of a gram.
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Reviewed in the United States on April 15, 2026
★★★★★ 4
Mostly great, except one little annoyance
Color: Black&Silver, Color: Black&Silver
Pros- lightweight, small, very accurate, easy to clean, timer included.
Cons- I use this to brew espresso on my Breville Touch and to get an accurate reading, you have to place something flat (structured) under the scale. Otherwise the reading just jumps all over the place. I know lot of espresso machines have the same base, so this might be an issue for some!
This is my reason for 4/5 stars. It’s an easy fix, it’s just kind of annoying. Value for the price seems to be on point. It’s easy to clean. It has a timer as well as scale (nice for espresso). Buttons work the first time you push them.
That’s it that’s all
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Beautiful, functional, and perfect for a stylish coffee bar
I absolutely love this scale. As someone who cares about both function and aesthetics, this was exactly what I was looking for. It’s refreshing to find a high-quality kitchen tool that doesn’t force you to sacrifice the look of your space. The white and gold design is stunning and fits perfectly on my coffee bar without looking bulky or industrial.
Functionally, it works flawlessly. I primarily use it to measure my coffee beans, but I’ve also used it for other items, and it’s consistently accurate and easy to use. The size is perfect — compact enough to keep out on the counter without taking up space, yet large enough to be practical and stable.
The display is clear, the buttons are responsive, and the overall build feels solid and well made. I also appreciate how intuitive it is to use — no learning curve at all.
If you’re someone who loves a beautiful, cohesive kitchen setup but still wants reliable, quality tools, I would highly recommend this scale. It’s small, stunning, and performs exactly as it should.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Great scale, an excellent buy
Color: Black&Silver
Is it possible to fall in love with a scale? I unboxed this one and, without reading any directions, put an empty 1/4 cup on it, turned the scale on, filled the 1/4 cup with coffee beans till I had the desired 17 or so grams, and turned the scale off. Easy-peasy! It’s small but sensitive, able to tell when a single bean has been added or removed. I almost didn’t get it because of the charging issue, but at least it tells you what the current charge is, and the way I use it I believe it will last several months without recharging. I’m so glad I bought this scale!
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Reviewed in the United States on April 14, 2026