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Gideon Optics Granite MOS Competition 1x 28.33x22.5mm Reflex Red Dot Sight
As Low As $199.99 Save Up to 33%
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Most Helpful Positive Review 507 Comp Killer
New to USPSA, I started with an 1MOA SRO on my tactical Glock 17 and was quickly looking for a bigger reticle. I hated the Holosun 507 Comp due to the thick square bezel and tiny dot or circle dot combos. For someone with astigmatism, circle dots are a mess. This had me looking for a big dot. There aren’t that many options at 8MOA, thus went ahead and tried the Gideon Granite MOS, despite being worried that it would be worse than the Holosun’s thick bezel due to the side battery. It turns out the optic is not a square, it’s such a clever trapezoid shape that gets larger as it goes up with an a...
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Nice large window green dot at a nice price point

by Parcm, Verified Owner from PA, United States Written on January 8, 2026
I have 500 rounds with this mounted on my G47 and very happy with it. Like the direct mount and big window. Holding zero so far. I am just not sure if I am a fan of green dots or the large MOA dot( just a preference thing not an issue with the merchandise).
Would recommend: Yes
Was it helpful to you? Yes | No

Don't fear the 8 MOA

by tomb, Verified Owner from OH, United States Written on October 28, 2025
Was a little worried the 8 MOA dot would be too big, but I really like it more than 3. Went with this cause all the other MOS cut dots sit really low and wanted this so the dot would be over the suppressor. It is the perfect height for suppressor. Glass is clean, and green dot looks great . I ended up buying another one.
Would recommend: Yes
Was it helpful to you? Yes | No

Great Red dot foe the Glock 41

by Mel, Verified Owner from TX, United States Written on October 23, 2025
Purchased this optic for a recently purchased Glock 41 MOS in 45ACP. My first ever Glock and first ever large bore pistol I've put an optic on. Really easy to mount directly to the slide. Optic comes with an additional Picatinny mount, and you simply use the two screws from the PIC mount to directly screw the Optic onto the MOS mount on the slide. No additional plate required so this system is very sturdy. Optic is very well built, and the glass screen is very clear. I've watched YouTube reviews that torture tested this sight and the sight's durability was impressive. The 8 MOA dot serves very well at the ranges I shoot, usually 25 yards or less, and the brightness settings are very nice and visible even on the brightest sunlit day. I have astigmatism and at the lowest useable brightness setting the dot is plenty clear with very minor distortion. Windage and elevation were easily adjustable, and it was easy to bring the dot on target. I've only put a couple hundred rounds through the pistol so far and the dot seems to maintain zero well and is still tight on the slide. The large widow is awesome and it's very easy to find the dot. The side mount battery compartment is great and on and off functions all work very well. My only very minor complaint, related to the optic and not to the horrible trigger on the Glock *S*, is I wish the optic came with a dust cover like all the optics I have on my carbines. Overall, time will tell, but so far, I love this optic, and the price is ve...
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Pros:
  • Sturdy
  • Easy access battery compartment
  • Clear viewing screen
  • direct mount to MOS slide
  • good sight adjustments
  • 8MOA dot is very nice
  • good on and off functions
  • free additional Picatinney mount
Cons:
  • dust cover would be nice
Best Used for:
  • Home Defense
  • general target shooting
Would recommend: Yes
Was it helpful to you? Yes | No

Red dot sight

by GENE LODES, Verified Owner from OK, United States Written on June 16, 2025
Nice large optic window for the price, will know more with more rounds
Pros:
  • None yet
Cons:
  • none yet
Best Used for:
  • Pistol
Would recommend: Yes
Was it helpful to you? Yes | No

Pleasantly surprised

by Heggie, Verified Owner from FL, United States Written on February 22, 2025
I was recommended this brand as being a decent budget optic and I wanted something to put on my Desert Eagle, so I ordered it. It works. It’s got a big, visible dot and the brightness settings allow for easy daytime shooting in the Florida sun. If you need a compact red dot with a big 8 MOA dot and a picatinny mount, you can’t go wrong with this.
Pros:
  • Big Dot
  • Picatinny
Cons:
  • Made in China
Would recommend: Yes
1 of 1 found the following review helpful.
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