how to align your gasblock


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Old 06-23-2014, 11:07 PM   #1
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Default how to align your gasblock

question that pops up from time to time is, my rifle isnt cycling properly or how do i get my gas block square.

well there are a couple ways one involves eyeballing it with ye olde mark 1 eyeball. this can work and it can be a lot of fiddling to get right.

however i prefer to do it right the first time and know its going to be allowing the gas to flow into the block with no issues.

here is how i do it.

tie some thread to the barrel extension stretch it square across the index pin so its centered. then bring it down the barrel centering over the gas port. make an index mark on the thread and barrel.



next tie the thread to the block align along the center of the gas tube hole make second reference mark.



now you can easily align the two marks tighten the set screws then check the marks for movement and readjust if needed.



while it looks a little off in the three pics thats just my crappy photography and camera perspective. but they give you the idea



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Old 06-24-2014, 12:43 AM   #2
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Wow this is great info. You should sticky this in the AR-15 threads



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Old 06-24-2014, 04:24 AM   #3
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Nice 'n' Easy! I like!

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Old 06-24-2014, 05:00 AM   #4
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Nice and simple. Much better then the laser level and machined bracket that I've been using for the last few years! Thanks for the info JonM!

+1 on the sticky, maybe a new topic "AR Build Tips and Tricks" Start collecting some of these build tips in one place...

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Old 06-24-2014, 05:10 AM   #5
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Quote:
Originally Posted by dwmiller View Post
Nice and simple. Much better then the laser level and machined bracket that I've been using for the last few years! Thanks for the info JonM! +1 on the sticky, maybe a new topic "AR Build Tips and Tricks"...
Thanks. I got the idea from law and order criminal intent a few years back. One guy was being framed for murder by his wife who had done a murder for hire and the hitman used a steel wire to strangle a victim. The wife planted a modified chalk snap line her husband always carried replacing the line with wire so he would get busted going through the court metal detector.

I was swapping out a bent gas tube and cleaning my carbine while it was on and thinking about gasblocks and how to align them...

Stupid, but you never know when an idea hits

I will leave the condensing to someone else who is less apt to erase subforums...
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Old 06-24-2014, 07:46 AM   #6
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Nice info, thank you!. I just properly aligned and installed the gas tube last night by marking with pencil and a paper name card. Also dimpled the barrel right where the gas block screws sit tight.
Google and Youtube are free knowledge.

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Old 06-25-2014, 01:03 PM   #7
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Awesome idea ill keep it in mind thanks JohM



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