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Reviews & Ratings for Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly — 15 reviews

(15 reviews)
Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly
Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly
$1,641.00 $1,527.00 Save $114.00
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Most Helpful Positive Review Amazing upper
I slapped this on top of a cheap but well made PSA lower and put a radian trigger, safety selector and charging handle I put a geissele h2 buffer and spring in the buffer tube and my pistol shoots like a dream. Very accurate for an 11.5 it was between this and a Geissele mod 1 but the Geissele was out of stock so I went with this and boy I am not disappointed at all with my choice I like this better because I was always a big fan of the mk18 so this feels like an upgraded version of it.
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DD4 RIIIS complete upper

by J N, Verified Owner from VA, United States Written on July 2, 2026
Excellent complete upper. Really happy with the rail system and its weight. DD always puts out a good product.. paired with a geissle and all the additional accoutrement runs great first 400 rounds!
Would recommend: Yes
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Love this upper

by Clayton, from WV, United States Written on May 30, 2026
Perfect length, guard feel good in my hands and the BCG and Charing handle are top tier.
Would recommend: Yes
1 of 1 found the following review helpful.
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Great upper

by Clyde, Verified Owner from GA, United States Written on May 18, 2026
I’ve been using this product for a month now, and it completely exceeded my expectations.
Would recommend: Yes
1 of 1 found the following review helpful.
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Great upper. kind of heavy.

by ts1012, Verified Owner from TX, United States Written on March 8, 2026
Fit and finish is excellent. Function has been 100% with an H2 buffer. Highly recommended. It is a bit heavy due to the RISIII rail but not terrible. Definitely not a lightweight build though.
Pros:
  • Fit and finish
  • Rigidity
Cons:
  • weight
Would recommend: Yes
2 of 2 found the following review helpful.
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Upper receiver

by Jake, from AR, United States Written on March 4, 2026
Very good I highly recommend built very well and is made out of high quality and durable materials
Would recommend: Yes
1 of 1 found the following review helpful.
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Daniel Defense

by Jacob j, from FL, United States Written on February 22, 2026
Great would recommend. Very durable and have had no problems at all. High quality and built with great materials
Would recommend: Yes
1 of 1 found the following review helpful.
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So smooth, is it a 22?

by Pitbull, Verified Owner from MI, United States Written on February 12, 2026
That is what my buddy said when he shot it. Hold 1moa 50y no problem, just outside 1moa at 100 with 55 grain reloads.
Would recommend: Yes
1 of 1 found the following review helpful.
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DD RIS III S

by hay, from LA, United States Written on February 6, 2026
Great upper over all. Very durable. Highly recommend.
Would recommend: Yes
1 of 1 found the following review helpful.
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When optics planet is on it’s on

by Matt, Verified Owner from SC, United States Written on January 5, 2026
The upper is a Daniel defense. It really doesn’t need to be spoken about. There’s some as good but there’s none better but what really needs to be spoken about here is the deal I got from optics planet. Many times optic planet increase prices to give a discount code and have the illusion of a sale. this time for the holiday They decreased prices and gave 13% off. It was an amazing deal. I could not find it cheaper anywhere else. Love this from optics planet please keep doing things like this.
Would recommend: Yes
1 of 1 found the following review helpful.
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it is a DD and the new RisIII rail is light and clean.

by bw, Verified Owner from AL, United States Written on June 26, 2025
Accurate, it’s a DD. Don’t hesitate to purchase if you are looking for a quality upper receiver
Pros:
  • light
Cons:
  • price
Best Used for:
  • Recreation
Would recommend: Yes
1 of 1 found the following review helpful.
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Last updated 2025-11-12 UTC.