.750 Low Profile Gas Block

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The Ergo 4821 .750 Low Profile Gas Block is designed to fit under the Ergo Modular and SuperLite™ Rail System, as well as most other manufacturer’s free float handguards. Melonite QPQ finish for durability, and machined from 4140 chromoly steel with chamfered edges, featuring a slip on fit for ease of installation and secured with two set screws.

  • CNC machined 4140 chromoly steel
  • Nitride/Melonite QPQ finish
  • Chamfered edge, slip on fit
  • USA made steel & machined in the USA
  • Weighs 2oz
  • Fits under most free float handguards
  • Internal Diameter 0.750
  • Includes (2) set screws for a secure attachment
  • Accepts standard gas tube roll-pins (roll‑pin NOT included)


More Information
Gas System Parts Gas Block
Compatibility AR15 / M4 / M16
Note Includes 2 set screws for a secure attachmen
Manufacturer Number 4821
SKU 154088
Brand ERGO® Grips
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