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4821 ERGO .750 Low Profile Gas Block

Manufacturer: Ergo
SKU: ERG4821
Manufacturer part number: 4821
UPC: 874748006415
Availability: In stock
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The Ergo Low Profile .750 Gas Block (4821) is designed to fit under the Ergo Modular and SuperLite™ Rail System, as well as most other manufacturer’s free float handguards.


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