Dimple your Own AR-15 Barrel

YouTube channel nsz85 breaks it down Barney-style on using hand-tools to dimple an AR-15 barrel for set-screw-style gas blocks. Conceivably, this same method could be used to dimple your entire barrel (given enough patience and bits). I will personally leave any machining to a competent gunsmith or buy a dimpled barrel.

Check out the full channel for a full gamut of do-it-yourself firearms videos including AR-15 building and AK-47 stock refinishing.

I, for one, will complement his video style. He breaks it down without being overly talkative (like NutnFancy) or stoic (Brownells). Simple editing, good camera angles, and most importantly – high enough resolution to see what he is actually doing.

What your your thoughts? Open to ad-hoc work or leave it to professionals?

Nathan S

One of TFB’s resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR’s, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.

The above post is my opinion and does not reflect the views of any company or organization.


  • Interesting, although with my mechanical prowess I would find some way to screw it up!

    • gunslinger

      sometimes i can’t even draw a straight line in CAD

      • Cornelius Carroll

        I’ve been there, lol.

  • Cornelius Carroll

    Nice video. I’m a big fan of DIY gun-smithing and the community really does a great job of churning out videos like this. The only downside in this case is that if you were to dimple your entire barrel there’s a fair chance you could screw up the harmonics and affect its accuracy. For some that’s probably a reasonable tradeoff.

    • Raven

      But think of the drag reduction dimples would give you, like a golf ball!

      • gunslinger


  • hkryan

    Dimpling an entire barrel with hand tools sounds like a quick way to necessitate buying a new barrel.