So my rifle ejects, it functions, but it’s coming out at 45-90 degrees (in front or off to my direct right). Anyway to tell how many clicks counter-clockwise to close the gas block or is it trial and error to get to eject back and right?
Trial and error. When using an adjustable gas block i always close off (no bolt cycling) and then open one click at a time until i get it where i want it.
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Last question, why couldn’t I pick up this hobby when ammo was half the price?
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Welcome to the sickness.
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I’m down with the sickness.
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i ask myself that too… i wish prices were what they were back in the early 2000’s.
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A similar, but different, question. I was trying to adjust my gas port today. It ejects fine AND chambers subsequent rounds very well. However, it never locks back after the last round. The adjustment screw must certainly be close to falling out. I’m using Magpul magazines. They work fine on my other AR 10. Any suggestions?
Can you lock it back manually on an empty magazine using the charging handle? If not, there is probably debris in the action limiting travel.
If you can lock it back manually, then I would verify that the gas block is seated properly and verify that it aligns properly with the port in the barrel.
Also check the gas tube itself for fouling or debris that could limit gas flow.
And don’t forget, ARs run best with plenty of lube.
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Thanks! It does manually lock back with an empty mag locked in place. How is the best way of insuring gas block alignment with the barrel outlet? This was the first time shooting it after building it. It’s cleaned and lubbed.
Since the barrel is keyed, the gas vent will point straight up. You should be able to see any misalignment of the gas block while the rifle is held straight. There might be a way to use a level on it but I’ve never done that. A long time ago I had to eyeball mine in because the rear iron sight couldn’t adjust far enough to one side.
I’m replacing the barrel nut for a more secure one. I’ll check the alignment then.
You can also put a mark on your barrel where the block sits. Then remove the block and check to make sure the depth from the mark is the same for the port and the hole in the block.
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Having the barrel port concentric with the gas block hole, the block is usually not against the machined-shoulder on the barrel, as well.
1/64” to 1/32” is typical - but based entirely on lining up the ports, and not a “Rule”.
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Got a PA10 with 3 Position Adjustable Click Switch Gas Block. I’m assuming clockwise equals less gas and counterclockwise equals more gas? Just wanting someone to confirm before I go messing with it. Sorry to reply to this topic but for some reason I can’t start a new one.
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Correct and welcome to the forum @cqt79 
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I was given the advice “Start with closed, open one click and add one click until it’s gassed properly. This was when ammo was $1,80 / round, you picked a better time.”
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You can also reach in with a skinny screwdriver through the hand guard and push on the gas block forward and backward to see if it moves before disassembly
You can’t start a post because your new here