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Great upper. kind of heavy. - Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly

by ts1012, Verified Owner from TX, United States Written on March 8, 2026
Review for 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
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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ts1012's Review of Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly

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
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Last updated 2026-06-03 UTC.