AR15 Gas Block Aligner, 5.56mm

Rated 5.00 out of 5 based on 4 customer ratings
(4 customer reviews)


SKU: 10011 Categories: ,


Ensure perfect alignment between your AR15 barrel port and your gas block. Our alignment pins can be used universally between any standard 3/4″ inner diameter gas block and barrel combination, regardless of manufacturer. Please see our video for a demo on how quick and easy proper gas block installation can be when using this tool.

  • .223, 5.56, or any other .22 caliber round.
  • Low Profile, Adjustable, Flip-up Sight Blocks.
  • Use with any 3/4″ or larger diameter barrel.
  • 6 pin diameters for precise alignment.
  • Mark and dimple barrel, perfectly every time.

Designed and Manufactured completely in USA.

Gunsmith Installation Recommended for All Parts.

4 reviews for AR15 Gas Block Aligner, 5.56mm

  1. Rated 5 out of 5

    Bill Lawson

    I have not used this but I have some virgin barrels with undrilled front sight posts I will be using these on.
    I could use toothpicks but by the time I sanded them down to size and oiled them up I would have to notch them just right.
    Rather just pay the $7.00.

    So fricken glad somebody put the money and connections into this. I’m sure millions have been wondeing why somebody hasn’t made them. I don’t know if you could sell these to big industries unless you found out how big the gas holes were and made a bunch of them the same size but for a guy that got a few $80.00 barrels and wants to put new front sight bases its a heck of a lot better than a jig. I will be setting my fsb with a set screw before I drill them out.

  2. Rated 5 out of 5

    Evan Hart

    Great little product. I ordered two of these a while ago for two builds I was doing. They worked as you show in your video, and were extremely helpful with the clamp-on style gas blocks, since you don’t have a screw to mate up with the dimple some barrels provide. Thank you for a great and helpful tool!

  3. Rated 5 out of 5

    Jason (verified owner)

    Super Quick and easy to use. I use these every time now knowing that my gas block is always 100% aligned and takes one more little thing out of the equation if you’re troubleshooting your upper.

  4. Rated 5 out of 5


    I got a set of these in a TacPack box and they have proven themselves invaluable. I used to have to put in a lot more work to be sure the gas port/block were lined up correctly, now it only takes seconds and I know it is aligned 100%. I am almost out of them and will be ordering more.

Add a review

Your email address will not be published. Required fields are marked *