G&R Tactical
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Thread: Upper/Lower Fitment Issue

  1. #11
    Join Date
    Aug 2011
    East TN
    Feedback Score
    26 (100%)
    Curious to the make of lower?

  2. #12
    Join Date
    Jul 2011
    Peoria, Illinois
    Feedback Score
    1 (100%)
    AKDoug may have hit the nail on the head. I have an Aero upper and lower that are likely just a hair out with one another. They mate up with other combinations of uppers and lowers however. The thin layer of cerakote may be contributing to the issue. I used a Dremel to remove .005 or so off of the rear pin so I wouldn't need to hammer it in.
    Last edited by Torch-36; 12-09-18 at 16:45.

  3. #13
    Join Date
    Jan 2008
    AZ-Waging jihad against crappy AR's.
    Feedback Score
    104 (100%)
    If you have tried it with 2 different lowers (although you left out some details) and you think there is an issue, then contact LMT as per the site rules.

    Owner/Instructor at Semper Paratus Arms

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