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PSA 18” 6.5 Gas Block Adjustment
#3
Rosecrans1 Wrote:The screw at front facing side of the gas block is the locking screw. The one on the side adjusts the gas.

To adjust the gas system;

1. Make sure the firearm is unloaded.

2. Turn the barrel of the firearm so you can look down the barrel.

3. You should see a set screw. This is the lock screw that must be loosed to adjust the system.

4. Now that you've unlocked the gas block, look on the side of the gas block. You should see another screw. This is the screw that adjusts the gas going to the receiver. Adjust this screw.

5. Set lock screw, reload, fire. Check for malfunctions.

6 If the firearm does not cycle, repeat steps 1-5 until the system functions with your ammo type.

If your PSA gas block looks like the one pictured below, these are the instructions and what each screw does. (no clicks on mine). On the adjusting screw.......turning in stems the flow of gas. Turning out allows more gas. My PSA was purchased in 2016.

[ATTACH=CONFIG]18522[/ATTACH]

That is a different gas block than what is on mine. The front screw is offset to the side, and the side screw is on the opposite side, more to the rear of the gas block.

I have a picture, but I have to figure out how to post one on this forum.
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PSA 18” 6.5 Gas Block Adjustment - by Rosecrans1 - 12-25-2021, 09:47 PM
PSA 18” 6.5 Gas Block Adjustment - by ThomasKelly - 12-26-2021, 03:01 AM

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