Dimpling your barrel to help secure your gas block is key to ensuring the gas system of your AR will continue to function correctly. A loose gas block can cause havoc to the cycling of your AR. I dimple at least once directly under the gas port. I can dimple twice, but realize that different manufactures have different spacing for the second screw. If you want or need to change your existing gas block you have to use a gas block with the same set screw spacing. Not a huge issue for some, but if the new gas block you want has a different spacing you would need to get another barrel to accommodate the different spacing.
Using the proper tools I do the dimpling.
I blue it up to match the barrel:
Now ready to get the gas block installed.
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All Documents posted on this site are for informational use only. If you make ANY modifications to your Weapons based on this site, you do at your own risk! If done incorrectly, you can render you weapon unsafe and / or unusable.
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