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Reviews & Ratings for CMMG DISSENT Mk4, 300BLK, 10.5in Upper Receiver — 2 reviews

(2 reviews)
CMMG DISSENT Mk4, 300BLK, 10.5in Upper Receiver
CMMG DISSENT Mk4, 300BLK, 10.5in Upper Receiver
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CMMG DISSENT Mk4 300BLK 10.5 upper receiver

by Sean, from OH, United States Written on April 22, 2026
Excellent build quality as always from CMMG. Fit perfectly with an already existing AR lower and binary trigger. Now it’s a double tap machine!
Pros:
  • Quality
  • pricing
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Comes with something important

by Will, Verified Owner from MA, United States Written on December 8, 2024
I am building my own bufferless 300-blk AR, and I ended up picking this over the BRN. One advantage with CMMG is that they include a buffer adapter that goes right where your traditional stock would go. Many companies try to sell you an adapter well into the $200s while it is included with CMMG. I have not shot it yet, but the fit and finish looks great and it cycles fine from the dry firing.
Would recommend: Yes
2 of 2 found the following review helpful.
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