Home CMMG The Briefing Room: AR15 Low Profile Gas Block Mounting 101

The Briefing Room: AR15 Low Profile Gas Block Mounting 101

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In this installment of the Briefing Room, we talk about a vital piece to your AR15, the gas block. Mounting and having he gas block securely fastened to the barrel is a critical step of proper rifle assembly. Sadly there are still many manufacturers and even more builders that take short cuts when securing a low profile gas block on a barrel. In this video we talk about two of the different methods, excluding clamp on block, and the process for each. Hopefully this helps you in maybe your future build or knowing what to look for when looking at rifles.

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15 COMMENTS

  1. I wish BCM pinned their low profile gas blocks (or at least offered the option). They told me that they have never had one single one of their gas blocks come lose. But they only use one dimple, not two. I’ve been thinking about buying they jig to pin it myself. Do you think I should do that?

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