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Posted: 12/23/2015 3:16:54 PM EDT
| Most side charge uppers state you will need to modify a hand guard with anti rotational tabs to fit on the upper. By the looks of it, I feel the KNR should work but I wanted to see if anyone had any experience with this. I'm looking at using a Gibbz or New Frontier upper. Thanks in advance and Merry Christmas |
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I don't have any experience with side charging uppers, however I can tell you the BCM KMR and KMR Alpha both have anti-rotational features via an installed index plate, which strattles the upper reciever, and installs into the corresponding slot on the handguard.
Hope that helps. |
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