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PT 3B : AR15 UPGRADE – STNGR GAS BLOCK INSTALL WITH BARREL DIMPLE

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Now we get technical. I dimpled my barrel and installed the low profile gas block. I could only do one dimple because on of the previous pin slots was in the way. One is all you really need anyway. Oh… and some tips on that little gas tube to gas block roll pin installation!

Part Three of this overall build series focuses on upgrading to a STNGR HWK Free Float 15″ Handguard. It was broken up into segments for easier consumption:

3A – STNGR HWK AND HOW TO PROPERLY TORQUE BARREL NUT

3B – STNGR GAS BLOCK INSTALL WITH BARREL DIMPLE

3C – STNGR HWK FINAL ASSEMBLY

Links that you might find helpful after watching this video:

STNGR ULTIMATE HWK M-LOK BUNDLE

Disclaimer: I am not an attorney. I am not a cop (any more). I am not your gunsmith (probably). I am not your firearms instructor (most likely). I am not your spouse. I am not your parent. I’m just some dude on the Internet making videos. It is your responsibility to verify the legitimate application of whatever information or ideas I present. My opinions are my own. They can not be bought. This video is for entertainment purposes only. There is nothing in this video that violates YouTube policy or community standards. I don’t sell guns.

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27 COMMENTS

  1. These videos are amazing. Im prepping to do my first upgrade (starting exactly where you started in video 2), and these videos are much more comprehensive than anything else out there. If I had one one friendly suggestion, please stop smacking you lips so much. It comes through very loudly, and you do it often.

  2. I watched all your videos but in this one I was waiting for the part were you install the new barrel nut because I need to do the same with my m&p sport 2 i don't know what barrel nut did you used and how you installed it.

  3. Only video i could find that covered the issue of the slots in the barrel left by the A2 FSB and how to deal with securly installing a low pro gas block around them. 👍

  4. The red thread locker will come off with a little bit of heat, but you said it can handle quite a bit of heat from the barrel? Wouldn't it come loose when he gets hot by shooting? Great video of the process though! thanks

  5. My 2 dremels,cordless and corded would be perfect for something like your 2nd dimple,the kit has very small stone tips with points and could easily notch out that small section slowly and easily.

  6. The gas block I got had lines milled in it so I was able to flip it then use a pencil to mark center of the hole on the barrel then flip it and line up with the pencil Marks.
    Having 2 swaying lines milled already in the sides of the gas block made it easier for me to line up.

  7. Good and informative video, but to be honest, it made me realize it's probably easier to just spend the $30/$40 dollars on the jig and call it a day. One set screw on the gas hole would have eliminated all the guesswork and eyeballing, and you would have had a guide hole so only one drill bit would be needed. Your video does highlight that those taper pin slots can make it it so a person might be limited to only getting one dimple down.

  8. I took the a2 front post/gas block off of my s&w m&p sport 2 and the pins went through the barrel not just scored. Shoukd I be worried about the barrel being too thin? And is there a way to fill them legally? I took the old pin and pounded it in and ground and smoothed it all out but it seems to be walking out.

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