Doing a 13.7 build and I am in the midst of figuring out which rail I want to use. Using a BCM stripped upper so wanted to also use a BCM MCMR MLOK rail. My concern is that this rail, while measuring at 13 inches, actually extends out to 13.4 at the flared portion. Using a KNOX on this build. My concern is if I end up adding a can that I will run into clearance issues. Anyone have any experiences?
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