How to Tune Your 8 Position Gas Block on the PSA JAKL Rifle ~ VIDEO

When you’re tuning a gas block, precision matters, especially with the versatile PSA JAKL rifle. With its 8-position adjustable gas block, you can fine-tune your rifle to ensure it fires smoothly and reliably across different ammo types and accessories. Here’s a simple guide and tips from Justin at Palmetto State Armory to help you adjust the gas block on your JAKL or similar gas blow back operated rifle.

Why Adjust Your Gas Block?

The gas block is critical in regulating the gas flow that cycles your firearm’s action. Proper adjustment is vital to prevent issues like short-stroking or excessive recoil, particularly when changing ammo or adding accessories like suppressors.

Tuning the Gas Block

1. Start Fully Closed: Twist the gas block to the right to begin with it fully closed. Insert a single round in your magazine to test whether the bolt locks back after firing.
2. Increase Gradually: If the bolt doesn’t lock back, adjust the gas block by two clicks to the left and retry. Continue this process until the bolt locks back consistently on an empty mag.
3. Test for Consistency: Once the bolt locks back reliably, test a few more rounds to confirm consistency.
4. Fine-Tune for Less Recoil: If you prefer less recoil, reduce the gas flow by one click to the right. If this causes the bolt to stop locking back, return to the previous setting.
5. Wide Ammo Variety Adjustment: For those using a variety of ammo types, go one click further to the left from the reliable locking point. This ensures consistent operation across different ammo types.

Adjusting for a Suppressor

Adding or removing a suppressor changes the back pressure, affecting the rifle’s gas system:

1. Initial Test with Suppressor: Test your current gas block setting with a suppressor attached. If the ejected round is violently expelled forward, the gas setting is too high.
2. Reduce Gas Flow: Adjust the gas block two clicks to the right and fire another round. If the round still ejects violently, continue reducing by two clicks until the casing ejects toward the 3 o’clock position.
3. Fine-Tune for Bolt Lock: If the bolt stops locking back, increase the gas flow by one click to the left.

Key Takeaways

• Proper gas block adjustment ensures smooth, consistent cycling of your JAKL or AR-15.
• If the bolt isn’t locking back, it’s a sign of insufficient gas.
• Too much gas causes excessive recoil and violent casing ejection.
• Re-tune your gas block for reliable operation when adding or removing a suppressor.

Remember, dialing in your PSA JAKL Rifle variants is a matter of testing and finding the right balance. With the correct setting, your rifle will handle different ammo types and accessories with ease. Head to the range and give it a try!

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