MDT XRS what are these forend holes for? Adding flush cup.

TheNatural21

Private
Minuteman
  • May 30, 2020
    72
    26
    The MDT XRS forend has these holes in the side, underneath the plastic mlok slots. They are different from the 3 threaded holes for mounting the side panels. What are they for!? There are holes in the bottom of forend that look like they line up with the forend weight, but I can't find any accessories that seem to use these holes.

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    I have an MDT XRS and just went from the original forend to an enclosed forend to get the arca rail, and these holes are on both forends.

    I also added the wood kit that I've had kicking around for a while, and I like the look. However, I lost my side mlok on the forend that I was using for a sling cup. I am thinking about enlarging one of these and threading it for a threaded flush cup (I would also drill through the wood side panels). I just don't want to unknowingly mess up a mounting point for an accessory I might want in the future.