Quote:
Originally Posted by Brian in Oregon
The problem with set screw gas blocks is most people and even some companies install them incorrectly.
After aligning the gas block and tightening the set screws, the assembly should be removed and DIMPLES be put in the barrel at the location of the set screw marks on it.
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That's an interesting point, but I don't think it's necessary. Why would I say that? Because I have thousands of rounds and hundreds of hours of work with a couple ARs with set screw gas blocks that weren't dimpled. They have stayed in place and worked perfectly.
Is dimpling the barrel better? Maybe. I just don't think it's necessary. Proper tightening of the set screws and application of Loc-Tite and you should be good.