- Product Code: 4822
- EAN: 874748006422
- Weight: 54 g
- Product temporarily out of stock
Ergo 4822 .750 Adjustable Gas Block is designed to fit under the Ergo Modular and SuperLite™ rail systems as well as most other manufacturers' freefloat handguards. Adjustments are made with 5/64 inch mounting screws, ensuring the system stays locked in place without the need for Loctite.
For best installation, we recommend using 5/64" and 3/32" wrenches.
- CNC machined 4140 chrome steel
- Full closure with zero adjustment movement
- Nitride/melonite QPQ finish
- Beveled edge, half compression fit
- Made in the USA with US-sourced steel
- Fits most free-floating handguards
- Inner diameter 0.750
- Same profile/height as standard low-profile gas blocks
- Includes (2) mounting screws for secure attachment
- Includes one 5/64 inch mounting screw and one 5/64 inch mounting screw (rear direction)
- Accepts standard gas tube rolls, but roll pin is NOT included.
- The mounting screws are 3/32".
Weight: 2 oz / 52 g
Dimensions: 20 × 1 × 5 in
The adjustments must be done in a safe area following all safety rules. “Make sure that the firearms are completely unloaded”
Assuming that you have installed the gas block, properly aligned with the barrel gas port and the gas tube properly positioned with the gas block tightened in place.
Once this is done, loosen the front set screw, then turn the adjustment screw on the side in until it stops (do not over-tighten). This will restrict the gas flow to the gas tube all the way down.
Now, shoot the rifle at a safe location in a safe direction with 1 round in the magazine. The round should fire and not lock the bolt back. This indicates insufficient gas to extract, eject and lock the bolt back properly.
Next, turn the adjustment screw 1 full turn out. Fire the rifle again with 1 round in the magazine. Continue this process until the bolt locks open. Once it locks back, this is the point where you have sufficient pressure to operate the rifle.
Now back the adjustment screw out 1/2 turn more, then tighten the front set screw. This will lock the adjustment screw in place.
Test the rifle with 10 rounds, ensuring it ejects and functions correctly and locks back when empty.
You may be done now or may need to allow for a little more pressure. If so, adjust in ½ turn increments. Remember to loosen the front set screw first and re-tighten after.
