A mall wood shim in the bottom of the magazine well will fix the issue for nothing in less than 5 minutes.
One consideration and why I do not use the tab screws on ADLs is the need to make sure they are not locked together. When bedding I put a piece of paper between the magazine box and the action to ensure some play. You do not want the action to confuse the magazine box for a recoil lug.
Mark Begich, Joaquin Jackson, and Heller resistance... Three huge reasons to worry about the NRA.
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