MPN: 4822


  • Full shutoff with zero adjustment movement
  • Chamfered edge, semi-press fit
  • Fits under most free float handguards
  • Same profile/height as most standard low-profile gas block
  • Made in the U.S.A.


  • Material: 4140 Chromoly Steel
  • Finish: Black Nitride
  • Weight: 1.87 oz.
  • Height: 1.39"
  • Length: 1"
  • Width: 0.97"


  • AR-15 and AR-10 barrel with .750" gas seat


  • 1x Ergo Low-Pro Adjustable Gas Block
  • 2x Set Screws
  • 1x Adjustment Screw
  • 1x Retaining Screw

*Gas tube roll pin is not included


The low profile Ergo .750 adjustable gas block is designed to allow you to fine tune the amount of gas pressure allowed into the system so the firearm functions properly for a specific load. The gas block works with the Ergo Modular and SuperLite rail systems as well as most aftermarket free-floating handguards.

Improved Performance

The Ergo adjustable gas block allows you to precisely adjust and limit the amount of gas entering the ammo cycling system to properly correspond to each particular load you are shooting. This allows you to set the pressure, so it is just high enough to ensure proper operation while guarding the system from potential damage from excessive gas pressure.

Quality Construction

The Ergo .750 adjustable gas block is CNC machined from 4140 chromoly steel with chamfered edges and given a Melonite QPQ nitride finish for strength and durability. The gas block weighs in at just under two ounces so it won’t add any noticeable weight to your platform and the block has a full shutoff feature with zero adjustment movement.

Ready to Install

The Ergo adjustable gas block can be installed with a 5/64- and 3/32-inch wrench by a qualified gunsmith. The block is compatible with all AR-15 and AR-10 barrels with a .750 inch gas seat and comes with all the screws needed for installation. Note that the kit does not include a gas tube roll pin.

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