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Reviews & Ratings for Jacob Grey Firearms 9mm Complete Upper Assembly — 5 reviews

(5 reviews)
Jacob Grey Firearms 9mm Complete Upper Assembly
Jacob Grey Firearms 9mm Complete Upper Assembly
As Low As $669.99 Save Up to 16%
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Most Helpful Negative Review Jacob grey jg-9 upper
The quality is nice but the product shows up with the wrong hand guard. I ordered the 6” model. It came with 6” barrel but a tiny 4” hand guard and to me it looks funny and not like the picture on the website. I have reached out to optics planet twice and no response.
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great upper but discription is incorret

by Wynn Weaponeering, Verified Owner from VA, United States Written on November 6, 2025
Great upper, but their isn’t a LRBHO in the upper. I have it paired with a MFB lower and had to modify the upper for it to work
Would recommend: Yes
Was it helpful to you? Yes | No
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Decent but could be slightly better

by Cam, Verified Owner from CO, United States Written on May 1, 2025
to start off the thread pitch is not 1/2x28 its actually 1/2x36 and my order says it once purchased but the items description is wrong.

Meanwhile if you know anything about 9mm barrel the feed lip is slightly small which should cause error for basic fmj round but if you were looking to do HP or any other odd shaped tipped rounds then there is the potential for feeding errors. This isn't a bad upper by any means, it just means it wont be a reliable home defense if thats what you were thinking.
Would recommend: Yes
Was it helpful to you? Yes | No
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Pic doesn't match product

by DK3289, Verified Owner from TX, United States Written on April 21, 2025
Not worth the asking price. The finish is chalky and thin and product received with tiny blems where finish was chipped. And on top of that, the pic on OP doesn't look like what I was sent. Returned
Would recommend: No
Was it helpful to you? Yes | No
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Awesome!!!

by Rookie, Verified Owner from AZ, United States Written on November 9, 2024
Jacob Grey uppers are amazing!!! I recommend getting these uppers while they’re on sale. The fit finish, and feel are second to none.
Pros:
  • Flawless
  • awesome feel
  • awesome functionality
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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