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Radical Firearms 10.5 in. 5.56 M4 Upper Assembly
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Toby's Review of Radical Firearms 10.5 in. 5.56 M4 Upper Assembly

It would be a nice quad rail if the QD mounts worked with any of my Magpul 2 point QD slings. The QD mounts do not bite into this FQR and pull free with a little tug. Might be able to fix and make it usable but we will see. Specs say the quad rail is 14.88 OZ but feels heavier. Bought this when Optics planet had it on sale and advertised as 4150 CMV, found out afterwards it is only 4140 CMV. Meh... Bottom line, it is OK well built for the price and what it is built with, but not great.
Pros:
  • Built well
Cons:
  • Heavy, QD mounts on FQR
Best Used for:
  • Target shooting
Would Recommend: No
Was it helpful to you? Yes | No
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