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Description
GPO SPECTRA 4x 2.5-10x44MM I 2FP SCOPE G4I DROPThis 30mm line of riflescopes packs incredible features into small, compact, and versatile optics, with premium features like industry leading field of view, quick adjust turrets, fast focus ocular, and generous eye relief. SPECTRA 4x is sure to be your go to choice that transforms a hunt into a harvest. Technical Specifications Magnification . 2,5x 10x Field of view (FOV) m at 100m . 16,2 4,1 Objective diameter (mm) Effective diameter 44 Exit pupil
This 30mm line of riflescopes packs incredible features into small, compact, and versatile optics, with premium features like industry-leading field of view, quick-adjust turrets, fast focus ocular, and generous eye relief. SPECTRA™ 4x is sure to be your go to choice that transforms a hunt into a harvest.
Technical Specifications
| Magnification | . | 2,5x – 10x |
| Field of view (FOV) m at 100m | . | 16,2 – 4,1 |
| Objective diameter (mm) | Effective diameter | 44 |
| Exit pupil diameter (mm) | Measurement of the pupilary ocular beam | 12,3 – 4,4 |
| Eye Relief (inches) | From the last optical surface | 3,74 |
| Eye Relief (mm) | From the last optical surface | 95 |
| Travel value per click at 100y | 1 Click = x/100y | 1 |
| cm travel value per click at 100m | 1 Click = x/100m | 1 |
| Elevation range total (cm at 100m) | 100m | 235 |
| Windage range total (cm at 100m) | 100m | 235 |
| Parallax compensation | Parallax free at x distance | 100 m |
| Transmission Daylight | ISO 14490-5:2005 | 87% |
| Height (inches) | Without covers | 2,44 |
| Height (mm) | Without covers | 62 |
| Width (inches) | Fully extended | 2,85 |
| Width (mm) | Fully extended | 72,6 |
| Length (inches) | At outside diameter | 13,38 |
| Length (mm) | At outside diameter | 340 |
| Tube diamter (mm) | Width of main tube | 30 |
| Weight (ounces) | Without covers | 21.83 |
| Weight (grams) | Without covers | 619 g |
| Mechanical outer diameter (objective mm) | Objective end of scope | 52,5 |
| Mechanical outer diameter (ocular mm) | Ocular end of scope | 45,3 |
| Reticle Option | . | G4i Drop |
| Accessories included with the purchase | . | instruction manual, cleaning cloth, bikini scope cover, throw lever |
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
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Great for hair and skin. Great buy.
These pillow cases are great for my hair and skin. They look good, hold up well in the washer and dryer, and the price is great. They are cooling. Of course I wish they could be more cooling, but honestly I'm not sure that's even possible. Great pillow cases. Already bought more for other heads. Would buy again.
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Reviewed in the United States on March 11, 2026
★★★★★ 1
Hot hot hot. Side sleepers will hate it
At first touch, these are the coldest pillowcases I own … but only for seconds. Once you actually lay on them, within seconds they adjust to your body temp, the heat feels trapped, my head begins to feel hotter than before I laid down - which has in turn caused me loathe these pillow cases. I hate that I have missed the return window. Would never buy again, would never recommend. My satin ones aren’t even this hot! I gave them the good ole 30-day try.
Side sleepers - if you are like me and sleep on your side with arm tucked under pillow - flipping this pillow over in hopes of a cold side - forget it, it’s already hot from your arm.
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Reviewed in the United States on August 29, 2025
★★★★★ 2
Ehh
Pills up rather quickly
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Reviewed in the United States on June 7, 2026
★★★★★ 3
Nice but dissapointing
So it sometimes stays cool but if it’s under a blanket and you have your body on it at all it will get warm but the spots you don’t use will get cool sometimes. I am very disappointed in the material though because it’s like my dry skin scratched the pillow case all over which makes me question it and I don’t think I would buy again.
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Reviewed in the United States on December 15, 2025
★★★★★ 5
Great pillow, but the cooling effect depends on the cover
Color: Blue-ice Plus, Size: King(Pack of 2)
I really like this pillow overall. It’s comfortable, supportive, and feels well made. When you use it without a pillowcase, it definitely feels cool to the touch and does what it claims in terms of that initial cooling sensation.
However, once you put a pillowcase on it, you can’t really feel the cooling effect anymore. I’ve tried multiple different pillowcases made from different materials, and none of them really let that cool feeling come through.
That said, I still love the pillow itself. It’s comfortable and supportive enough that I’m keeping it. Just keep in mind that the cooling feature works best without a cover, which isn’t ideal for everyone.
Overall, a good pillow — just manage expectations about the cooling effect once it’s covered.
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Reviewed in the United States on February 17, 2026